共 7 条
- [1] Bing R.H., 1960, CAN JOUR MATH, V12, P209, DOI 10.4153/CJM-1960-018-x
- [2] DANCER W, 1936, FUND MATH, V27, P123
- [4] DOYLE PH, 1960, MICH MATH J, V7, P199
- [5] WHYBURN L, 1937, FUND MATH, V28, P124
- [6] WILDER RL, 1936, FUND MATH, V27, P136
- [7] [No title captured]