共 16 条
[1]
ARON M, 1975, REND ISTIT LOMBARD A, V109, P424
[2]
BEJU I, 1971, ARCH RATION MECH AN, V42, P1
[3]
BEJU I, 1972, REV ROUMAINE MATH PU, V17, P1535
[7]
EKELAND I, 1974, J MATH ANAL APPL, V47, P323
[8]
Ekeland I., 1974, ANALYSE CONVEXE PROB
[9]
FICHERA G, 1972, EXISTENCE THEOREMS A, V6