| Literature DB >> 6886570 |
Abstract
The S leads to I leads to R epidemic model of K. Dietz with annual oscillation in the contact rate is shown to have multiple stable subharmonic solutions of different integral year periods.Mesh:
Year: 1983 PMID: 6886570 DOI: 10.1007/bf00305758
Source DB: PubMed Journal: J Math Biol ISSN: 0303-6812 Impact factor: 2.259