共 15 条
[1]
ASH CJ, TO BE PUBLISHED
[2]
BAIRD GR, TO BE PUBLISHED
[3]
Clifford A.H., 1961, MATH SURVEYS, V1
[4]
CLIFFORD AH, 1967, MATH SURVEYS, V2
[5]
Fuchs L., 1963, PARTIALLY ORDERED AL
[6]
HOWIE JM, 1964, P EDINBURGH MATH SOC, V14, P71
[7]
Munn W.D, 1961, P GLASGOW MATH ASS, V5, P41, DOI [10.1017/S2040618500034286, DOI 10.1017/S2040618500034286]
[10]
Preston G. B., 1954, J LOND MATH SOC, V29, P411, DOI 10.1112/jlms/s1-29.4.411