Puig, Luis Blocks of finite groups : the hyperfocal subalgebra of a block = [You xian qun de kuai : kuai de chao ju jiao zi dai shu] - Berlin: Springer, 2002 - 213 p. : ill. ; 24 cm ISBN: 354043514X (alk. paper) Subjects--Topical Terms: Blocks (Group theory) Dewey Class. No.: QA177 .P86 2002 512/.2