共 21 条
[1]
AGMON S, 1965, LECTURES ELLIPTIC BO
[2]
CORDES HO, 1956, NACHR AKAD WISS G MP, P239
[3]
Eidus D.M., 1962, AM MATH SOC TRANSL, V57, P157
[4]
Heinz E., 1955, NACHR AKAD WISS GOTT, V1955, P1
[5]
Hormander L., 1963, LINEAR PARTIAL DIFFE
[8]
KUPRADSE WD, 1956, RANDWERTAUFGABEN SCH
[10]
LEIS R, 1962, ARCH RATION MECH AN, V9, P21