On some properties of the family of independent sets in abstract algebras Siemion Fajtlowicz; Edward Marczewski — 1969 Colloquium Mathematicum
Homomorphisms of direct powers of algebras Andrzej Ehrenfeucht; Siemion Fajtlowicz; Jan Mycielski — 1979 Fundamenta Mathematicae
Separable variables algebras Siemion Fajtlowicz; Kazimierz Głazek; Kazimierz Urbanik — 1966 Colloquium Mathematicum
Ramseyan properties of graphs. DeLaVina, Ermelinda; Fajtlowicz, Siemion — 1996 The Electronic Journal of Combinatorics [electronic only]