Emergent computation proceedings of the 9. Annual Internat. Conference of the Center for Nonlinear Sudies on Self-organizing, Collective, and Cooperative Phenomena in Natural and Artificial Computing Networks ; LosAlamos, NM, USA, May 22-26, 1989 (North-Holland, 1990)
In: Physica / D. Vol. 42, Nos. 1/3, 1990