共 6 条
[1]
DRABEK P, 1992, RES NOTES MATH, V264
[2]
EARL A., 1955, THEORY ORDINARY DIFF
[3]
Fuik S., 1973, Lecture Notes in Mathematics, V346
[4]
Huang Y.-X., 1995, DIFF INT EQUA, V8, P429
[5]
LI W, 1995, NONL ANAL, V24, P185
[6]
ZEIDLER E, 1990, NONLINEAR FUNCTION A, V2