共 13 条
[1]
Birkhoff G.D., 1927, DYNAM SYST, VVolume 9
[2]
Bogoliubov N. N., 1961, ASYMPTOTIC METHODS T
[3]
CHERRY JM, 1924, P CAMBRIDGE PHIL SOC, V22, P510
[4]
CHERRY JM, 1924, P CAMBRIDGE PHIL SOC, V22, P325
[8]
Contopoulos G., 1960, Z ASTROPHYS, V49, P273
[9]
GOLDSTEIN H, 1959, CLASSICAL MECHANICS, P280
[10]
HASTIE RJ, 1967, ANN PHYS, V41, P2