共 10 条
[3]
CHANG PH, 1976, MICH MATH J, V23, P277
[4]
GREENBERG J, 1976, ARCH RAT MECH ANAL, V60, P29
[8]
MACCAMY RC, 1967, ARCH RATION MECH AN, V25, P299
[9]
RABINOWITZ PH, 1978, COMMUN PUR APPL MATH, V31, P31