1. —— “On isomorphism of continuous endomorphism rings,”Sib. Mat. Zh.,4, No. 1, 177–186 (1963)
2. —— “Special structure spaces of rings,”Dokl. Akad. Nauk SSSR,150, No. 2, 259–261 (1963).
3. —— “A remark on the article ‘On Cohn's rings' by L. A. Skornyakov,”Algebra Logika,4, 30, (1965).
4. —— “Isomorphisms of endomorphism semigroups of modules, 1,”Algebra Logika,5, No. 5, 59–67 (1966).
5. —— “Isomorphisms of endomorphism semigroups of modules, 2,”Algebra Logika,6, No. 2, 38–47 (1967).