共 14 条
[11]
Mikhlin S.G., 1970, VARIATSIONNYE METODY
[12]
SYNGE JL, 1938, P R SOC LONDON A, V167
[13]
VAINBERG MM, 1962, USP MAT NAUK, V17
[14]
VOROVICH II, 1961, MAT SB, V53