1. The Burnside Problem and Identities in Groups;Adian,1979
2. Nilpotent groups, lectures given at “Canadian Congress Summer Seminar, University of Alberta, 1957”;Hall,1969
3. Some sufficient conditions for a group to be nilpotent;Hall;Illinois J. Math.,1958
4. Finiteness Conditions and Generalized Soluble Groups;Robinson,1972