00757nam0-22002411i-450-990001206060403321000120606FED01000120606(Aleph)000120606FED0100012060620000920d1980----km-y0itay50------baengMathematicalModelling in Biology and Ecology Proceedings of a Symposium held at the CSIR, Pretoria, South Africa July 5-6, 197 9Edited by W. M. CetzBerlin [etc.]Springer-Verlag1980Lecture notes in biomathematics33ITUNINARICAUNIMARCBK990001206060403321C-15-(336122MA1MA1Mathematical343641UNINAING01