1. Periodical products of groups,;Adian;Trudy Mat. Inst. Steklov,1976
2. Non-discrete topologizability of infinite commutative rings,;Arnautov;Soviet Math. Dokl.,1970
3. Nondiscrete topologizability of countable rings,;Arnautov;Soviet Math. Dokl.,1970
4. Imbeddings in simple algebras,;Bokut;Algebra and Logica,1976
5. Model Theory;Chang,1973