共 15 条
[11]
SOLONNIKOV VA, 1965, T MAT I STEKLOV, V83
[12]
STAKGOLD I, 1973, LECTURE NOTES MATH, V322
[14]
TESEI A, 1980, ANN MAT PUR APPL, V126, P103
[15]
Volterra V, 1931, LECONS THEORIE MATH