共 28 条
[2]
[Anonymous], 1957, DIFFERENTIAL EQUATIO
[3]
[Anonymous], 1964, NONLINEAR DIFFERENTI
[6]
Bellman R., 1953, STABILITY THEORY DIF
[7]
CHERKAS LA, 1970, DIFF EQUAT, V6, P891
[10]
FREEDMAN HI, 1979, B MATH BIOL, V41, P67, DOI 10.1007/BF02547925