共 9 条
[2]
AGARWAL RP, IN PRESS P AM MATH S
[3]
Deimling K., 1985, NONLINEAR FUNCTIONAL, DOI DOI 10.1007/978-3-662-00547-7
[7]
O'Regan D., 1995, DIFF EQUAT, V3, P289
[8]
O'Regan D., 1997, Existence Theory for nonlinear ordinary differential equations
[9]
ORegan D, 1997, DYN CONTIN DISCRET I, V3, P517