00765nam0-22002771i-450-990001176990403321000117699FED01000117699(Aleph)000117699FED0100011769920000920d1980----km-y0itay50------baengMathematical Modelling in Epidemiologyby FRAUENTHAL J.C.Berlin [etc.]Springer-Verlag198 0Dinamica delle popolazioniFrauenthal,J.C.55710ITUNINARICAUNIMARCBK9900011769904033217-B-1821430MA1MA192-0192D25Mathematical Modelling in Epidemiology342114UNINAING01