共 9 条
[1]
BIRKHOFF GD, 1927, AMER MATH SOC COLLOQ, V9
[2]
FULLER FB, TO APPEAR
[3]
Leray J, 1950, P INT C MATH CAMBRID, VII, P202
[5]
REEB G, 1963, INT S NONLINEAR DIFF
[7]
Wecken F., 1941, MATH ANN, V117, P659
[8]
WECKEN F, 1943, MATHEMATISCHE ANNALE, V118, P216
[9]
Wecken F., 1941, MATH ANN, V118, P544