Endomorphisms of Relatively Hyperbolic Groups. - Igor Belegradek; Andrzej Szczepanski (Int. J. Algebra Comput., 2008)

Geometry of Crystallographic Groups - Andrzej Szczepanski (World Scientific, 2012)

Minimal Nonsolvable Bieberbach Groups. - Rafal Lutowski; Andrzej Szczepanski (Exp. Math., 2025)