Mathematical modelling of environmental and ecological systems excerpts from an International Symposium on Mathematical Modelling of Ecological, Environmental, and Biological Systems, held from August 27th-30th, 1985, in Kanpur, India - Capasso, V. (Vincenzo) 1945-; Hallam, T. G. (Thomas G.); Shukla, J. B. (Developments in environmental modelling, 1987)