摘要: This paper is devoted to the examination of a strictly increasing chain of subclasses of Butler groups.
李武炎, 张员荣. ON A CHAIN OF BUTLER GROUPS[J]. 数学物理学报(英文版), 1998, 18(3): 303-309.
Lee Wuyen, Chang Yuanrung. ON A CHAIN OF BUTLER GROUPS[J]. Acta mathematica scientia,Series B, 1998, 18(3): 303-309.