共 5 条
[1]
DANCER EN, 1971, P LOND MATH SOC, V23, P699
[2]
Kato T., 1966, PERTURBATION THEORY, V132, P396
[3]
LANDMAN KA, 1978, THESIS U MELBOURNE
[4]
McLeod J. B., 1973, Journal of Functional Analysis, V14, P62, DOI 10.1016/0022-1236(73)90030-X
[5]
Taylor AE, 1967, INTRO FUNCTIONAL ANA