共 16 条
[1]
Agarwal R. P., 1993, SERIES REAL ANAL, V6
[2]
[Anonymous], 1999, NIEUW ARCH WISKD 4 S
[5]
Coddington E., 1955, THEORY ORDINARY DIFF
[8]
LIPSCHITZ R, 1877, DARBOUX B, V10, P149
[9]
Mie G., 1893, MATH ANN, V43, P553