共 9 条
[3]
EILENBERG S, 1952, F ALGEBRAIC TOPOLOGY
[5]
Hopf H., 1941, ANN MATH, V42, P22, DOI 10.2307/1968985
[7]
Samelson H., 1941, ANN MATH, V42, P1091
[9]
Serre JP., 1953, COMMENT MATH HELV, V27, P198, DOI [10.1007/BF02564562, DOI 10.1007/BF02564562]