共 6 条
[1]
Ambrosetti A., 1973, Journal of Functional Analysis, V14, P349, DOI 10.1016/0022-1236(73)90051-7
[2]
CLARKE F, COMM PURE APPL MATH
[3]
CLARKE FM, UNPUBLISHED
[5]
RABINOWITZ PH, 1974, VARIATIONAL METHODS
[6]
Rockafellar R. T., 1970, CONVEX ANAL