Energy and ecological modelling : proceedings of a symposium held from 20 to 23 April 1981 at Louisville, Kentucky : sponsored by the International Society for Ecological Modelling, in cooperation with Ecological Society of America ... [et al.] - Mitsch, William J.; Bosserman, R. W. (Robert W.); Klopatek, Jeffrey M. (Developments in environmental modelling ;, 1981)