共 18 条
[13]
Kato T., 1966, PERTURBATION THEORY, V132, P396
[14]
LONDON F, 1928, PROBLEME MODERNEN PH
[15]
NENCIU G, 1979, CENTR I PHYS I PHY N
[16]
Reed M., 1978, METHODS MODERN MATH
[17]
REED M, 1979, METHODS MODERN MATH, V3
[18]
Reed M, 1972, METHODS MODERN MATH, VI