共 18 条
[2]
SYSTEMS OF ORDINARY DIFFERENTIAL-EQUATIONS WITH NON-LINEAR SUPERPOSITION PRINCIPLES
[J].
PHYSICA D,
1982, 4 (02)
:164-182
[5]
Ervin V. J., 1984, WAVE PHENOMENA MODER
[7]
HAVLICEK M, 1975, REP MATH PHYS, V8, P319
[8]
HERMANN R, 1973, SOPHUS LIES 1890 TRA
[9]
HLAVATY L, 1984, J MATH ANAL APPL, V104, P247
[10]
LIE S, 1893, THEORIE TRANSFORMATI, V3, P71