00296nam a2200121Ia 4500082002600000100002200026245004400048260003400092300002100126490001700147500000500164700000500169  a519.50246144bF845.MM  aFrauenthal, J. C.  aMathematical modeling in epidemiologyb  aBerlinbSpringer-Verlagc1980  avii, 118p. Index  aUniversitext  a  a