共 16 条
[1]
ABRAMOV SA, 1997, PROGRAMMIROVANIE, P59
[2]
[Anonymous], 1977, Algebra
[3]
Birkhoff G., 1967, Amer. Math. Soc. Colloq. Publ., V25
[4]
Cameron P.J., 1994, Combinatorics: Topics, Techniques, Algorithms
[5]
Gratzer G., 1978, GEN LATTICE THEORY
[6]
On reducible linear homogenic differential equations.
[J].
MATHEMATISCHE ANNALEN,
1903, 56
:0549-0584
[9]
Ore O, 1932, J REINE ANGEW MATH, V167, P221
[10]
Ore O, 1932, J REINE ANGEW MATH, V168, P233