共 28 条
[3]
Brauer F., 2012, Mathematical models in population biology and epidemiology, V2
[4]
Braun Martin, 1983, DIFFERENTIAL EQUATIO
[6]
Elabbasy E. M., 2007, Int. J. Nonlinear Sci., V4, P171
[7]
Grove E.A., 2004, Periodicities in Nonlinear Difference Equations
[8]
GUCKENHEIMER J., 2013, Appl. Math. Sci., V42
[10]
Kuznetsov VS, 2004, VOP ISTORII, P3