共 17 条
[1]
Alekseev V M., 1968, MATH USSR SB, V6, P505, DOI [10.1070/SM1968v006n04ABEH001074, DOI 10.1070/SM1968V006N04ABEH001074]
[2]
ALEKSEEV VM, 1968, MATH USSR SB, V5, P73
[3]
[Anonymous], [No title captured]
[4]
BIRKHOFF GD, 1950, COLLECTED WORKS
[8]
EASTON RW, UNPUBLISHED
[10]
MCGEHEE R, 1973, J DIFFERENTIAL EQUAT, P70