Constructively
Formalizing Automata Theory joint work with R.L. Constable, P.
Jackson, and J. Uribe in Proof, Language, and Interaction: Essays in
Honour of Robert Milner, MIT Press, 1998 (322K)
Undesidability of Second Order Provability Logic with Witness Comparison,
Vestnik
MGU , Vol. 48, No. 3, pp. 14-17 1993 (Russian). English Translation
in Moscow University Mathematics Bulletin, Allerton Press, New York
Undesidability of Godel-Lob Logic with Quantifiers over Propositional
Variables, Vestnik MGU , Vol. 48, No. 2, pp. 13-16 1993 (Russian).
English Translation in Moscow University Mathematics Bulletin, Allerton
Press, New York
On Modal Logics, Conservative over Intuitionistic Calculus, Vestnik
MGU , Vol. 46, No. 6, pp. 58-61 1993 (Russian). English Translation
in Moscow University Mathematics Bulletin, Allerton Press, New York
Second Order Modal Logics with Provability Interpretation, Diploma
Thesis, Moscow State University, June 1992