共 9 条
[1]
ANANE A, 1987, CR ACAD SCI I-MATH, V305, P725
[2]
[Anonymous], 1993, PROGR NONLINEAR DIFF
[3]
Dinca G., 2001, Portugaliae Mathematica. Nova Serie, V58, P339
[6]
Kawohl B., 2006, Analysis (Munich), V26, P545, DOI DOI 10.1524/ANLY.2006.26.4.545
[8]
Rabinowitz PH, 1986, MINIMAX METHODS CRIT
[9]
Willem M., 1996, PROGR NONLINEAR DIFF, V24