共 14 条
[3]
BAUMGARTEL H, TO BE PUBLISHED
[4]
Fuks B. A., 1962, INTRO THEORY ANALYTI
[5]
GLASMANN JM, 1963, DIRECT METHODS QUALI, P177
[6]
Gochberg I.Z., 1965, INTRO THEORY LINEAR
[7]
Howland J. S, 1970, ARCH RATION MECH AN, V39, P323
[9]
Kato T., 1966, PERTURBATION THEORY, V132, P396
[10]
KREIN MG, 1964, SBORNIK PER LETN MAT, V1, P103