Journal articles
- B. P. Evans, M. Prokopenko, Bounded rationality for relaxing best response and mutual consistency: the Quantal Hierarchy model of decision making, Theory and Decision, 10.1007/s11238-023-09941-z, 2023.
- S. L. Chang, Q. D. Nguyen, A. Martiniuk, V. Sintchenko, T. C. Sorrell, M. Prokopenko, Persistence of the Omicron variant of SARS-CoV-2 in Australia: The impact of fluctuating social distancing, PLOS Global Public Health, 3(4): e0001427, 2023.
- A. J. Svahn, C. J. E. Suster, S. L. Chang, R. J. Rockett, E. M. Sim, O. M. Cliff, Q. Wang, A. Arnott, M. Ramsperger, T. C. Sorrell, V. Sintchenko, M. Prokopenko, Pangenome Analysis of a Salmonella Enteritidis Population Links a Major Outbreak to a Gifsy-1-Like Prophage Containing Anti-Inflammatory Gene gogB, Microbiology Spectrum, 11(2): e02791-22, 2023.
- B. P. Evans, M. Prokopenko, Bounded strategic reasoning explains crisis emergence in multi-agent market games, Royal Society Open Science, 10(2): 221164, 2023.
- Q. D. Nguyen, M. Prokopenko, A general framework for optimising cost-effectiveness of pandemic response under partial intervention measures, Scientific Reports, 12: 19482, 2022.
- J. Thompson, R. McClure, N. Scott, M. Hellard, R. Abeysuriya, R. Vidinaarachichi, J. Thwaites, J. Lazarus, S. Michie, C. Bullen, M. Prokopenko, S. Chang, O. Cliff, C. Zachreson, T. Blakely, T. Wilson, D. Ait Oakrim, V. Sundararajan, A framework for communicating the utility of models when facing tough decisions in public health, Health Research Policy and Systems, 20, 107, 2022.
- A. Malik, M. Li, M. Lenzen, J. Fry, N. Liyanapathirana, K. Beyer, S. Boylan, A. Lee, D. Raubenheimer, A. Geschke, M. Prokopenko, Impacts of climate change and extreme weather on food supply chains cascade across sectors and regions in Australia, Nature Food, 3: 631-643, 2022.
- C. Zachreson, S. L. Chang, N. Harding, M. Prokopenko, The effects of local homogeneity assumptions in metapopulation models of infectious disease, Royal Society Open Science, 9, 211919, 2022.
- S. L. Chang, O. M. Cliff, C. Zachreson, M. Prokopenko, Simulating Transmission Scenarios of the Delta Variant of SARS-CoV-2 in Australia, Frontiers in Public Health, 10, 10.3389/fpubh.2022.823043, 2022.
- A. J. Svahn, S. L. Chang, R. J. Rockett, O. M. Cliff, Q. Wang, A. Arnott, M. Ramsperger, T. C. Sorrell, V. Sintchenko, M. Prokopenko, Genome-wide networks reveal emergence of epidemic strains of Salmonella Enteritidis, International Journal of Infectious Diseases, 117: P65-73, 2022.
- C. Zachreson, S. L. Chang, O. M. Cliff, M. Prokopenko, How will mass-vaccination change COVID-19 lockdown requirements in Australia?, The Lancet Regional Health – Western Pacific, 14: 100224, 2021.
- R. Nigmatullin, M. Prokopenko, Thermodynamic efficiency of interactions in self-organizing systems, Entropy, 23(6): 757, 2021.
- B. Slavko, K. Glavatskiy, M. Prokopenko, Revealing configurational attractors in the evolution of modern Australian and US cities, Chaos, Solitons & Fractals, 148: 111079, 2021.
- B. P. Evans, M. Prokopenko, A maximum entropy model of bounded rational decision-making with prior beliefs and market feedback, Entropy, 23(6): 669, 2021.
- B. P. Evans, K. Glavatskiy, M. Harré, M. Prokopenko, The impact of social influence in Australian real-estate: market forecasting with a spatial agent-based model, Journal of Economic Interaction and Coordination, DOI: 10.1007/s11403-021-00324-7, 2021 (also on arXiv).
- K. Glavatskiy, M. Prokopenko, A. Carro, P. Ormerod, M. Harré, Explaining herding and volatility in the cyclical price dynamics of urban housing markets using a large‑scale agent‑based model, Business and Economics, 1:76, DOI: 10.1007/s43546-021-00077-2, 2021.
- E. Crosato, M. Prokopenko, M. Harré, The polycentric dynamics of Melbourne and Sydney: Suburb attractiveness divides a city at the home ownership level, Proceedings of Royal Society A, 477: 20200514, 2021.
- B. Slavko, M. Prokopenko, K. Glavatskiy, Diffusive resettlement: irreversible urban transitions in closed systems, Entropy, 23 (1): 66, 2021.
- J. Bell, G. Bianconi, D. Butler, J. Crowcroft, P. C. W. Davies, C. Hicks, H. Kim, I. Kiss, F. Di Lauro, C. Maple, A. Paul, M. Prokopenko, P. Tee, S. I. Walker, Beyond COVID-19: Network science and sustainable exit strategies, Journal of Physics: Complexity, 2(2): 021001, 2021.
- S. L. Chang, N. Harding, C. Zachreson, O. M. Cliff, M. Prokopenko, Modelling transmission and control of the COVID-19 pandemic in Australia, Nature Communications, 11, 5710, 2020.
- O. M. Cliff, N. McLean, V. Sintchenko, K. M. Fair, T. C. Sorrell, S. Kauffman, M. Prokopenko, Inferring evolutionary pathways and directed genotype networks of foodborne pathogens, PLoS Computational Biology, 16(10): e1008401, 2020.
- Q. D. Nguyen, M. Prokopenko, Structure-preserving imitation learning with delayed reward: an evaluation within the RoboCup Soccer 2D Simulation environment, Frontiers in Robotics and AI, 7: 123, 2020.
- R. J. Rockett, A. Arnott, C. Lam, R. Sadsad, V. Timms, K.-A. Gray, J.-S. Eden, S. L. Chang, M. Gall, J. Draper, E. Sim, N. L. Bachmann, I. Carter, K. Basile, R. Byun, M. V. O. Sullivan, S. C. A. Chen, S. Maddocks, T. C. Sorrell, D. E. Dwyer, E. C. Holmes, J. Kok, M. Prokopenko, V. Sintchenko, Revealing COVID-19 transmission by SARS-CoV-2 genome sequencing and agent based modelling, Nature Medicine, 26: 1398–1404, 2020.
- S. L. Chang, M. Piraveenan, M. Prokopenko, Impact of network assortativity on epidemic and vaccination behaviour, Chaos, Solitons & Fractals, 140: 110143, 2020.
- M. Lenzen, M. Li, A. Malik, F. Pomponi, Y.-Y. Sun, T. Wiedmann, F. Faturay, J. Fry, B. Gallego, A. Geschke, J. Gómez-Paredes, K. Kanemoto, S. Kenway, K. Nansai, M. Prokopenko, T. Wakiyama, Y. Wang, M. Yousefzadeh, Global socio-economic losses and environmental gains from the Coronavirus pandemic, PLoS ONE, 15(7): e0235654, 2020.
- B. Slavko, K. Glavatskiy, M. Prokopenko, City structure shapes directional resettlement flows in Australia, Scientific Reports, 10: 8235, 2020.
- N. Harding, R. E. Spinney, M. Prokopenko, Population mobility induced phase separation in SIS epidemic and social dynamics, Scientific Reports, 10: 7646, 2020.
- C. Zachreson, K. M. Fair, N. Harding, M. Prokopenko, Interfering with influenza: nonlinear coupling of reactive and static mitigation strategies, Journal of Royal Society Interface, 17(165): 20190728, 2020.
- N. Harding, R. E. Spinney, M. Prokopenko, Phase transitions in spatial connectivity during influenza pandemics, Entropy, 22(2), 133, 2020.
- S. Chang, M. Piraveenan, P. Pattison, M. Prokopenko, Game theoretic modelling of infectious disease dynamics and intervention methods: a review, Journal of Biological Dynamics, 14(1): 57-89, 2020.
- M. Prokopenko, M. Harré, J. Lizier, F. Boschetti, P. Peppas, S. Kauffman, Self-referential basis of undecidable dynamics: from The Liar Paradox and the halting Problem to the edge of chaos, Physics of Life Reviews, 31, 134-156, 2019 (also on arXiv).
- E. Crosato, M. Prokopenko, R. E. Spinney, Irreversibility and emergent structure in active matter, Physical Review E, 100, 042613, 2019.
- K. M. Fair, C. Zachreson, M. Prokopenko, Creating a surrogate commuter network from Australian Bureau of Statistics census data, Scientific Data, 6, 150, 2019.
- S. L. Chang, M. Piraveenan, M. Prokopenko, The Effects of Imitation Dynamics on Vaccination Behaviours in SIR-Network Model, International Journal of Environmental Research and Public Health, 16(14), 2477, 2019.
- O. M. Cliff, V. Sintchenko, T. C. Sorrell, K. Vadlamudi, N. McLean, M. Prokopenko, Network properties of Salmonella epidemics, Scientific Reports, 9, 6159, 2019; see also: Supplementary Information.
- B. Slavko, K. Glavatskiy, M. Prokopenko, Dynamic resettlement as a mechanism of phase transitions in urban configurations, Physical Review E, 99, 042143, 2019.
- A. D. M. Wilson, A. L. J Burns, E. Crosato, J. Lizier, M. Prokopenko, T. M. Schaerf, A. J. W. Ward, Conformity in the collective: differences in hunger affect individual and group behavior in a shoaling fish, Behavioral Ecology, arz036, 2019.
- C. Zachreson, K. M. Fair, O. M. Cliff, N. Harding, M. Piraveenan, M. Prokopenko, Urbanization affects peak timing, prevalence, and bimodality of influenza pandemics in Australia: Results of a census-calibrated model, Science Advances, 4(12), eaau5294, 2018.
- A. J. W. Ward, T. M. Schaerf, A. L. J. Burns, J. T. Lizier, E. Crosato, M. Prokopenko and M. M. Webster, Cohesion, order and information flow in the collective motion of mixed-species shoals, Royal Society Open Science, 5: 181132, 2018.
- D. Penny, C. Zachreson, R. Fletcher, D. Lau, J. T. Lizier, N. Fischer, D. Evans, C. Pottier, M. Prokopenko, The demise of Angkor: Systemic vulnerability of urban infrastructure to climatic variations, Science Advances, 4(10), eaau4029, 2018.
- E. Crosato, R. Nigmatullin, M. Prokopenko, On critical dynamics and thermodynamic efficiency of urban transformations, Royal Society Open Science, 5: 180863, 2018.
- D. Chu, M. Prokopenko, J. C. J. Ray, Computation by natural systems, Interface Focus, 8, 20180058, 2018.
- N. Harding, R. Nigmatullin, M. Prokopenko, Thermodynamic efficiency of contagions: a statistical mechanical analysis of the SIS epidemic model, Interface Focus, 8 20180036, 2018.
- R. E. Spinney, J. T. Lizier, M. Prokopenko, Entropy balance and information processing in bipartite and non-bipartite composite systems, Physical Review E, 98 (3), 032141, 2018.
- R. E. Spinney, M. Prokopenko, D. Chu, Information ratchets exploiting spatially structured information reservoirs, Physical Review E, 98 (2), 022124, 2018.
- A. C. Kalloniatis, M. L. Zuparic, M. Prokopenko, Fisher information and criticality in the Kuramoto model of nonidentical oscillators, Physical Review E, 98 (2), 022302, 2018.
- O. M. Cliff, N. Harding, M. Piraveenan, E. Y. Erten, M. Gambhir, M. Prokopenko, Investigating Spatiotemporal Dynamics and Synchrony of Influenza Epidemics in Australia: An Agent-Based Modelling Approach, Simulation Modelling Practice and Theory, 87, 412-431, 2018 (also on arXiv).
- O. M. Cliff, M. Prokopenko, R. Fitch, Minimising the Kullback–Leibler Divergence for Model Selection in Distributed Nonlinear Systems, Entropy 20 (2), 51, 2018.
- E. Crosato, R. E. Spinney, R. Nigmatullin, J. T. Lizier, M. Prokopenko, Thermodynamics and computation during collective motion near criticality, Physical Review E, 97 (1), 012120, 2018.
- E. Crosato, L. Jiang, V. Lecheval, J. T. Lizier, X. R. Wang, P. Tichit, G. Theraulaz, M. Prokopenko, Informative and misinformative interactions in a school of fish, Swarm Intelligence, 12(4): 283-305, 2018 (also on arXiv).
- S. L. Chang, M. Prokopenko, Instability of mixed Nash equilibria in generalised Hawk-Dove game: A project conflict management scenario, Games, 8 (4), 42, 2017.
- M. Zuparic, V. Jauregui, M. Prokopenko, Y. Yue, Quantifying the impact of communication on performance in multi-agent teams, Artificial Life and Robotics, 22 (3), 357-373, 2017.
- M. Prokopenko, Complexity, Criticality and Computation, Entropy, 19 (8), 403, 2017.
- M. Prokopenko, Modelling complex systems and guided self-organisation, Journal and Proceedings of the Royal Society of New South Wales, 150, 463/464, 104-109, 2017.
- E. Y. Erten, J. T. Lizier, M. Piraveenan, M. Prokopenko, Criticality and Information dynamics in epidemiological models, Entropy, 19 (5), 194, 2017.
- R. E. Spinney, M. Prokopenko, J. T. Lizier, Transfer entropy in continuous time, with applications to jump and neural spiking processes, Physical Review E, 95 (3), 032319, 2017.
- O. M. Cliff, J. T. Lizier, X. R. Wang, P. Wang, O. Obst, M. Prokopenko, Quantifying long-range interactions and coherent structure in multi-agent dynamics, Artificial life, 23 (1), 34-57, 2017.
- O. M. Cliff, M. Prokopenko, R. Fitch, An information criterion for inferring coupling in distributed dynamical systems, Frontiers of Robotics and AI, 3, 71, 2016.
- R. E. Spinney, J. T. Lizier, M. Prokopenko, Transfer entropy in physical systems and the arrow of time, Physical Review E, 94, 022135, 2016.
- M. Harré, M. Prokopenko, The social brain: scale-invariant layering of Erdős–Rényi networks in small-scale human societies, Journal of The Royal Society Interface, vol. 13(118), 20160044, 2016.
- M. Prokopenko, L. Barnett, M. Harré, J. T. Lizier, O. Obst, X. R. Wang, Fisher Transfer Entropy: Quantifying the gain in transient sensitivity, Proceedings of The Royal Society A, vol. 471(2184), 20150610, 2015.
- C. Salge, N. Ay, D. Polani, M. Prokopenko. Zipf's Law: Balancing Signal Usage Cost and Communication Efficiency, PLOS ONE, 10(10): e0139475, 2015.
- M. Prokopenko, I. Einav, Information thermodynamics of near-equilibrium computation, Physical Review E, 91(6), 1-8, 2015.
- D. Budden, P. Wang, O. Obst, M. Prokopenko, RoboCup Simulation Leagues: Enabling Replicable and Robust Investigation of Complex Robotic Systems, IEEE Robotics and Automation Magazine, 22(3), 140-146, 2015.
- M. Prokopenko and C. Gershenson, Entropy Methods in Guided Self-Organisation, Entropy, 16(10), 5232-5241, 2014.
- M. Prokopenko, J. T. Lizier, Transfer Entropy and Transient Limits of Computation, Scientific Reports, 4:5394, 2014.
- M. Prokopenko, Grand challenges for Computational Intelligence, Frontiers of Robotics and AI, 1:2, 1-3, 2014.
- X. R. Wang, J. T. Lizier, T. Nowotny, A. Z. Berna, M. Prokopenko, S. C. Trowell, Feature Selection for Chemical Sensor Arrays Using Mutual Information, PLoS ONE, 9(3): e89840, 2014.
- M. Prokopenko, J. T. Lizier, D. C. Price, On thermodynamic interpretation of transfer entropy, Entropy, 15(2): 524-543, 2013.
- M. Piraveenan, M. Prokopenko, L. Hossein, Percolation Centrality: Quantifying Graph-Theoretic Impact of Nodes during Percolation in Networks, PLoS ONE, 8(1): e53095, 2013.
- V. Cupac, J. T. Lizier, M. Prokopenko, Comparing dynamics of cascading failures between network-centric and power flow models, International Journal of Electrical Power and Energy Systems, 49: 369-379, 2013.
- D. Polani, M. Prokopenko, L. S. Yaeger, Information and Self-Organization of Behavior, Advances in Complex Systems, topical issue on Guided Self-Organisation, 16(2): 1303001-1-1303001-12, 2013.
- A. Adamatzky, S. Akl, R. Alonso-Sanz, W. van Dessel, Z. Ibrahim, A. Ilachinski, J. Jones, A. V. D. M. Kayem, G. J. Martinez, P. de Oliveira, M. Prokopenko, T. Schubert, P. Sloot, E. Strano, X.-S. Yang, Are motorways rational from slime mould's point of view?, International Journal of Parallel, Emergent and Distributed Systems, 28(3): 230-248, 2013.
- X. R. Wang, J. M. Miller, J. T. Lizier, M. Prokopenko, L. F. Rossi, Quantifying and Tracing Information Cascades in Swarms, PLoS ONE, 7(7): e40084, 2012.
- J. T. Lizier, M. Prokopenko, and A. Y. Zomaya, Coherent information structure in complex computation, Theory in Biosciences, special issue on Guided Self-Organisation (GSO-2010), 131: 193–203, 2012.
- N. Ay, H. Bernigau, R. Der, M. Prokopenko, Information driven self-organization: The dynamical system approach to autonomous robot behavior, Theory in Biosciences, special issue on Guided Self-Organisation (GSO-2010), 131: 161–179, 2012.
- N. Ay, R. Der, M. Prokopenko, Guided Self-Organization: Perception-Action Loops of Embodied Systems, Theory in Biosciences, special issue on Guided Self-Organisation (GSO-2010), 131: 125–127, 2012.
- M. Piraveenan, M. Prokopenko, A. Y. Zomaya, On congruity of nodes and assortative information content in complex networks, Networks and Heterogeneous Media, 7(3): 441–461, September, 2012.
- J. T. Lizier, M. Prokopenko, and A. Y. Zomaya, Local measures of information storage in complex distributed computation, Information Sciences, 208: 39–54, DOI: 10.1016/j.ins.2012.04.016, 2012.
- A. Adamatzky, M. Prokopenko, Slime mould evaluation of Australian motorways, International Journal of Parallel, Emergent and Distributed Systems, 27(4): 275–295, 2012.
- M. Piraveenan, M. Prokopenko, A. Y. Zomaya. Assortative mixing in directed biological networks, IEEE Transactions on Computational Biology and Bioinformatics, 9(1): 66-78, 2012.
- M. Prokopenko, J. T. Lizier, O. Obst, and X. R. Wang, Relating Fisher information to order parameters, Physical Review E, 84, 041116, 2011.
- C. Gershenson, M. Prokopenko, Complex networks, Artificial Life, special issue on Complex Networks, 17(4), 1-3, 2011.
- J. T. Lizier, S. Pritam, M. Prokopenko, Information dynamics in small-world Boolean networks, Artificial Life, special issue on Complex Networks, 17(4), 293-314, 2011.
- X. R. Wang, J. T. Lizier, M. Prokopenko, Fisher Information at the Edge of Chaos in Random Boolean Networks, Artificial Life, special issue on Complex Networks, 17(4), 315-329, 2011.
- J. T. Lizier, J. Heinzle, C. S Soon, J.-D. Haynes, M. Prokopenko, Spatiotemporal information transfer pattern differences in motor selection, BMC Neuroscience, 12(Suppl 1):P261, doi:10.1186/1471-2202-12-S1-P261, 2011.
- M. Rubinov, J. T. Lizier, M. Prokopenko, M. Breakspear, Maximized directed information transfer in critical neuronal networks, BMC Neuroscience, 12(Suppl 1):P18, doi:10.1186/1471-2202-12-S1-P18, 2011.
- J. T. Lizier, J. Heinzle, A. Horstmann, J.-D. Haynes, M. Prokopenko, Multivariate information-theoretic measures reveal directed information structure and task relevant changes in fMRI connectivity, Journal of Computational Neuroscience, 30:85–107, 2011.
- M. Prokopenko, N. Ay, O. Obst and D. Polani, Phase Transitions in Least-Effort Communications, Journal of Statistical Mechanics: Theory and Experiment, 2010(11): P11025, 2010.
- J. T. Lizier, M. Prokopenko, and A. Y. Zomaya, Information modification and particle collisions in distributed computation, Chaos, 20(3): 037109, 2010.
- M. Piraveenan, M. Prokopenko, A. Y. Zomaya. Local assortativeness in scale-free networks – Addendum, Europhysics Letters, 89, 49901, 2010.
- J. T. Lizier, M. Prokopenko. Differentiating information transfer and causal effect, European Physical Journal B, 73(4), 605-615, 2010 (also on arXiv).
- M. Prokopenko, Guided Self-organization, HFSP Journal, 3(5), 287-289, DOI: 10.2976/1.3233933, 2009.
- M. Prokopenko, F. Boschetti, A. Ryan. An information-theoretic primer on complexity, self-organisation and emergence, Complexity, 15(1), 11-28, Wiley, 2009.
- M. Prokopenko, D. Polani, M. Chadwick. Stigmergic gene transfer and emergence of universal coding, HFSP Journal, 3(5), 317-327, DOI: 10.2976/1.3175813, 2009.
- M. Piraveenan, M. Prokopenko, A. Y. Zomaya, Local Assortativity and Growth of Internet, European Physical Journal B, 70, 275–285, 2009.
- J. T. Lizier, J.-D. Haynes, J. Heinzle, M. Prokopenko. Directed information structure in inter-regional cortical interactions in a visuomotor tracking task, BMC Neuroscience, 10(Suppl 1):P117, DOI: 10.1186/1471-2202-10-S1-P117, 2009.
- M. Prokopenko. Book review: Information and Self-Organization: A Macroscopic Approach to Complex Systems (H. Haken), Artificial Life, 15(3), 377-383, 2009.
- M. Piraveenan, M. Prokopenko, A. Y. Zomaya. Assortativeness and information in scale-free networks, European Physical Journal B, 67, 291–300, 2009.
- G. Mathews, H. F. Durrant-Whyte, M. Prokopenko. Decentralised decision making in heterogeneous teams using anonymous optimisation, Robotics and Autonomous Systems, 57(3): 310-320, 2009.
- M. Piraveenan, M. Prokopenko, A. Y. Zomaya. Local assortativeness in scale-free networks, Europhysics Letters, 84, 28002, 2008.
- J. T. Lizier, M. Prokopenko, and A. Y. Zomaya. Local information transfer as a spatiotemporal filter for complex systems. Physical Review E, 77, 026110, 2008 .
- Prokopenko, M., Polani, D., Wang, P. Optimizing Associative Information Transfer within Content-addressable Memory, International Journal of Unconventional Computation, Vol. 4(3), Special issue "Towards Theory of Unconventional Computing", 273-296, 2008.
- Prokopenko, M. A Preferential Semantics for Causal Reasoning about Action, Annals of Mathematics and Artificial Intelligence, Vol. 46(4), 375-413, April, 2006.
- M. Prokopenko, P. Wang, D. C. Price, P. Valencia, M. Foreman, A. J. Farmer. Self-organizing Hierarchies in Sensor and Communication Networks. Artificial Life, Special Issue on Dynamic Hierarchies, Vol. 11(4), 407-426, 2005.
- M. Prokopenko, P. Wang, M. Foreman, P. Valencia, D. C. Price, G. T. Poulton. On Connectivity of Reconfigurable Impact Networks in Ageless Aerospace Vehicles. Robotics and Autonomous Systems, Vol. 53(1), 36-58, 2005.
- D.A. Scott, A. Batten, G.C. Edwards, A.J. Farmer, M. Hedley, N. Hoschke, P. Isaacs, M.E. Johnson, A. Murdoch, C.J. Lewis, D.C. Price, M. Prokopenko, P. Valencia and P. Wang, An Intelligent Sensor System for Detection and Evaluation of Particle Impact Damage, Review of Progress in Quantitative Nondestructive Evaluation, Vol. 24, pp. 1825-32 (eds. D.O. Thompson and D.E. Chimenti), American Institute of Physics Conference Proceedings Vol. 760, 2005.
- D. Abbott, B. Doyle, J.B. Dunlop, A.J. Farmer, M. Hedley, J. Herrmann, G.C. James, M.E. Johnson, B. Joshi, G.T. Poulton, D.C. Price, M. Prokopenko, T. Reda, D.E. Rees, D.A. Scott, P. Valencia, D. Ward and J.G. Winter, Concepts for an Integrated Vehicle Health Monitoring System, Review of Progress in Quantitative Nondestructive Evaluation, Vol. 22, pp. 1606-14 (eds. D.O. Thompson and D.E. Chimenti), American Institute of Physics Conference Proceedings Vol. 657, 2003.