共 5 条
[1]
BRIUNO AD, 1967, MATEM ZAM, V1
[2]
Khazin L. G., 1971, Prikladnaya Matematika i Mekhanika, V35, P423
[3]
MARKEEV AP, 1968, PMM, V32
[4]
MOSER J, 1964, COMM PURE APPL MATH, V17
[5]
SIEGEL KL, 1959, LECTURES CELESTIAL M