共 18 条
[1]
Ayres WL, 1928, T AM MATH SOC, V30, P567
[3]
AYRES WL, 1927, ANN MATH, V28, P396
[4]
AYRES WL, 1927, ANN MATH, V28, P501
[5]
BAUMKURVEN, 1926, MATH ANN, V96, P572
[6]
Gehman HM, 1927, T AM MATH SOC, V29, P553
[7]
HAHN H, 1921, FUND MATH, V2, P189
[8]
KURATOWSKI C, 1920, FUND MATH, V1, P40
[9]
Menger K., 1927, FUND MATH, V10, P96, DOI DOI 10.4064/FM-10-1-96-115