共 22 条
[11]
Gray B., 1975, HOMOTOPY THEORY
[16]
Hirzebruch F, 1966, TOPOLOGICAL METHODS
[17]
HULL CM, 1987, COMMUNICATION
[18]
Husemoller D., 1966, FIBRE BUNDLES
[20]
POPE CN, 1978, PHYS LETT B, V73, P42