共 12 条
[2]
CHEVALLEY C, 1946, THEORY GROUPS
[3]
ECKMANN B, 1951, CR HEBD ACAD SCI, V232, P2284
[4]
ECKMANN B, 1950, P INT C MATH CAMBR M, V2, P420
[5]
ECKMANN B, 1953, COLLOQUES INTERNATIO, P151
[6]
ECKMANN B, 1954, 1953 C GEOM DIFF, P1
[7]
EHRESMANN C, 1951, CR HEBD ACAD SCI, V232, P1281
[8]
Ehresmann C., 1947, C INTERCNRS TOP ALG
[9]
HODGE WVD, 1952, RENDICONTI MATEMAT 5, V11, P1
[10]
Hopf Heinz, 1948, TOPOLOGIE KOMPLEXEN, P167