共 18 条
[1]
BANACH S, 1932, THEORIE OPERATIONS L, P53
[2]
FRECHET M, ESPACES
[3]
FRECHET M, 1926, ESPACES ABSTRAITS, P167
[4]
HAUSDORFF, 1933, B AM MATH SOC, V39, P601
[6]
KNESER H, 1926, MATH Z, V25, P366
[7]
KNESER H, KONVERGENZRAUME
[8]
LEFSCHETZ S, 1930, TOPOLOGY, P6
[9]
LEFSCHETZ S, 1930, TOPOLOGY, P77
[10]
SCHREIER O, ANN MATH, V35, P351