1. H. Bass, Algebraic K-Theory, Benjamin, New York (1968).
2. Z. I. Borevich, ?Parabolic subgroups of linear groups over a semilocal ring,? Vestn. Leningr. Gos. Univ., No. 13, 16?24 (1976).
3. Z. I. Borevich and N. A. Vavilov, ?Subgroups of the full linear group over a semilocal ring that contain the group of diagonal matrices,? Tr. Mat. Inst. Akad. Nauk SSSR,148, 43?57 (1978).
4. N. A. Vavilov, ?Subgroups of the full linear group over a ring that contain a group of quasitriangular matrices,? Vestn. Leningr. Gos. Univ., No. 19, 139?140 (1977).
5. L. N. Vasershtein, ?On the group SL2 over Dedekind rings of arithmetical type,? Mat. Sb.,89, No. 2, 313?322 (1972).