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  7. The global homological dimension of trivial linear topological extensions of rings. (Russian) Trudy Tbiliss. Mat. Inst. Razmadze 74 (1983), 26-38.

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  10. Homological dimension of extensions of abelian categories and rings. K-theory and homological algebra (Tbilisi, 1987-88), 1-35, Lecture Notes in Math., 1437, Springer, Berlin, 1990.

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  14. On (co)homology of 2-types and crossed modules (with T. Pirashvili). J. Algebra 244 (2001), 352-365.

  15. Kan extensions of internal functors. Nonconnected case. J. Pure Appl. Algebra 167 (2002), 195-202.

  16. Central series for groups with action and Leibniz algebras. Georgian Math. J. 9 (2002), No. 4, 671-681.

  17. Closed model category structures on the category of chain functors (with F.W.Bauer). Topology Appl. 131 (2003), No. 2, 101-128.