1. R. A. Sarkisyan, ?The conjugacy problem for the group GLn,? in: Fourteenth All-Union Algebra Conference (Novosibirsk, September, 1977), Abstracts of Reports, Part 1, Novosibirsk State Univ., Institute of Mathematics, Siberian Branch, Academy of Sciences of the USSR, Novosibirsk (1977), p. 59.
2. R. A. Sarkisyan, ?An occurrence problem for groups of adèles,? Mat. Zametki,25, No. 1, 37?50 (1979).
3. D. K. Faddeev, ?Equivalence of systems of integral matrices,? Izv. Akad. Nauk SSSR, Ser. Mat.,30, No. 2, 449?454 (1966).
4. M. Kneser, ?Strong approximation,? Proc. Symp. Pure Math., Vol. 9, Am. Math. Soc., Providence (1966), pp. 187?197.
5. Yu. L. Ershov, ?Elementary theory of local fields,? Algebra Logika,4, No. 2, 5?30 (1965).