共 13 条
[3]
GILBARG D, 1989, ELLIPTIC PARTIALLY D
[4]
Giorgi E. De., 1957, Mem. Accad. Sci. Torino. Cl. Sci. Fis. Math. Nat., V3, P25
[5]
GUSHCHIN AK, 1988, MATH USSR SB+, V137, P19
[6]
GUSHCHIN AK, 1991, MAT SBORNIK, V182, P787
[7]
GUSHCHIN AK, 2002, MAT SBORNIK, V193, P17
[8]
GUSHCHIN AK, 1998, MAT SBORNIK, V189, P53
[9]
GUSHCHIN AK, 1994, MAT SBORNIK, V185, P121
[10]
HORMANDER L, 1967, MATH SCAND, V20, P65