共 16 条
[1]
BERNDT J, 1989, J REINE ANGEW MATH, V395, P132
[2]
Berndt J., 1990, GEOMETRY TOPOLOGY SU, P10
[4]
CHEN BY, 1984, ALGEBRAS GROUPS GEOM, V1, P176
[5]
CHEN TE, 1984, T AM MATH SOC, V1, P176
[6]
Ki U. H., 1990, MATH J OKAYAMA U, V32, P207, DOI DOI 10.1007/BF02582036