共 16 条
[2]
De Giorgi E., 1956, ATTI ACCAD NAZ SFMN, V20, P438
[3]
Dressel F.G., 1940, DUKE MATH, V7, P186
[5]
EIDELMAN S, 1956, MAT SBORNIK NS, V38, P51
[6]
Ladyzhenskaya OA, 1950, MAT SBORNIK, V27, P175
[9]
NASH J, 1954, B AM MATH SOC, V60, P165