[1]Blyth, R. D.. Rewriting products of group elements. I. J. Algebra 116 (1988), 506–521.
[2]Blyth, R. D.. Rewriting products of group elements. II. J. Algebra 118 (1988), 246–259.
[3]Blyth, R. D. and Robinson, D. J. S.. Recent progress on rewritability in groups. In Proceedings of the 1987 Singapore Group Theory Conference (Walter de Gruyter, 1989), pp. 77–85.
[4]Cooper, D. H.. Power automorphisms of a group. Math. Z. 107 (1968), 335–356.
[5]Curzio, M., Longobardi, P. and Maj, M.. Su di un problema combinatorio in teoria dei gruppi. Atti Accad. Naz. Lincei Rend. Cl. Sci. Fis. Mat. Natur. (8) 74 (1983), 136–142.
[6]Curzio, M., Longobardi, P., Maj, M. and Robinson, D. J. S.. A permutational property of groups. Arch. Math. (Basel) 44 (1985), 385–389.
[7]Iwasawa, K.. Über die endlichen Gruppen und die Verbände ihrer Untergruppen. J. Univ. Tokyo 3 (1941), 171–199.
[8]Iwasawa, K.. On the structure of infinite M-groups. Japan. J. Math. 18 (1943), 709–728.
[9]Maj, M.. Some remarks on groups with permutable subgroup products. (To appear.)
[10]Rhbmtulla, A. H. and Weiss, A. R.. Groups with permutable subgroup products. In Proceedings of the 1987 Singapore Group Theory Conference (Walter de Gruyter, 1989), pp. 485–495.
[11]Robinson, D. J. S.. Finiteness conditions and generalized soluble groups, vol. 1 (Springer-Verlag, 1972).
[12] M.Tomkinson, J.. FC-Groups. Research Notes in Math. no. 96 (Pitman, 1984).