Hofling B. Subgroups of locally finite products of locally nilpotent groups / B.H@:ofling, 1997. - 19 p. - Текст : непосредственный.
Hofling B. On the number of conjugacy classes of maximal subgroups in a finite soluble group / B.H@:ofling, 1997. - 9 p. - Текст : непосредственный.