共 6 条
[1]
BELL S, 1980, ILLINOIS J MATH
[3]
KERZMAN N, 1972, MATH ANN, V195, P149
[5]
KORENBLUM B, 1976, ACTA MATH, V138, P265
[6]
Taylor B. A., 1970, CANADIAN J MATH, V22, P1266