Ein Satz über reproduktive Lösungen.
Endomorphism monoids of acts over monoids.
On independence of axioms of a certain class of ternary rings
On products in generalized algebraic categories
Polythéorie de Galois abstraite dans le cas infini général
Systems of equations and tolerance relations
S-системы произвольного индекса. I
S-системы произвольного индекса. II