00540nam a2200181Ia 4500082002500000100001800025245006400043260003400107300001000141490004100151500000500192690000600197700000500203952010600208964001700314921001000331999001700341  a519.5024574bW237.DT  aWaltman, Paul  aDeterministic threshold models in the theory of epidemicsb  aBerlinbSpringer-Verlagc1974  a101p.  aLecture notes in Biomathematics v 1  a  a   a  00104070aISIbISId1998-09-30l0o519.5024574 W237.DTpDP8999r2019-02-14 00:00:00w2019-02-14yBK  abcdefg  a15027  c15027d15027