共 84 条
[71]
SCHEFFER V, 1974, THESIS PRINCETON
[72]
SHIFFMAN B, 1974, P TULANE C VALUE D A, P63
[74]
STEFFEN K, 1973, THEORETISCHE MATHEMA, V40
[75]
Taylor J. E., 1977, COMMUN PART DIFF EQ, V2, P323, DOI DOI 10.1080/03605307708820033
[79]
Volpert A.I., 1967, MATH USSR SB, V2, P225