共 6 条
[3]
LEGSCHETZ S, 1961, B SOC MAT MEX, V1, P5
[4]
MASSERA JL, 1956, ANN MATH, V64, P182, DOI DOI 10.2307/1969955
[5]
Nemytskii V., 1960, QUALITATIVE THEORY D
[6]
ZUBOV VI, 1957, METHODS LYAPUNOV THE