共 7 条
[1]
BRAHANA HR, AM J MATH, V48, P1
[2]
Coxeter HSM, 1931, P CAMB PHILOS SOC, V27, P201
[3]
Coxeter HSM, 1937, P LOND MATH SOC, V43, P33
[4]
GARBE D, 1969, J REINE ANGEW MATH, V237, P39
[5]
Moser, 1972, GENERATORS RELATIONS
[6]
Sherk F. A., 1959, CAN J MATH, V11, P452, DOI [10.4153/CJM-1959-046-9, DOI 10.4153/CJM-1959-046-9]
[7]
WILSON S, 1976, THESIS U WASHINGTON