共 8 条
[1]
[Anonymous], 1949, VARIATIONAL PRINCIPL
[2]
Elsgolc LE, 1962, CALCULUS VARIATIONS
[3]
GOLDSTEIN H, 1959, CLASSICAL MECHANICS, P41
[4]
GOLDSTEIN H, 1959, CLASSICAL MECHANICS, P40
[5]
Infeld L., 1957, B ACAD POLON SCI C1, V5, P491
[6]
LANCZOS C, 1949, VARIATIONAL PRINCIPL, P66
[7]
RAY JD, TO BE PUBLISHED
[8]
WHITTAKER E, 1937, TREATISE ANALYTICAL, P241