共 14 条
[3]
DOICINOV D, DOKL AKAD NAUK SSSR, V156, P21
[6]
LOWEN R, 1974, CR ACAD SCI A MATH, V278, P925
[7]
LOWEN R, 1975, CR ACAD SCI PARIS, V280
[8]
Naimpally S, 1970, PROXIMITY SPACES
[9]
WARREN RH, 1974, NOTICES AM MATH SOC, V21