Permanence of a delayed SIR epidemic model with density dependent birth rate
2007 ◽
Vol 201
(2)
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pp. 389-394
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2011 ◽
Vol 218
(5)
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pp. 1682-1693
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2011 ◽
Vol 2011
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pp. 1-10
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2004 ◽
Vol 4
(3)
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pp. 671-678
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2007 ◽
Vol 201
(2)
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pp. 339-347
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2011 ◽
Vol 3
(7)
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pp. 453-454
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