共 4 条
[1]
Bosbach B, 1965, MATH ANN, V161, P279
[2]
FEINSTEIN DC, 1975, COLLOQ MATH, V32, P153
[3]
MAGRI R, 1969, ANN U FERRARA, V14, P1
[4]
WEINBERG E. C., 1965, MATH ANN, V159, P217