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Journal of Logic and Computation
Chagrov, A.V. and Zakharyaschev, Michael (1995) On the independent axiomatizability of modal and intermediate logics. Journal of Logic and Computation 5 (3), pp. 287-302. ISSN 0955-792X.
Studia Logica
Chagrov, A.V. and Zakharyaschev, Michael (1992) Modal companions of intermediate propositional logics. Studia Logica 51 (1), pp. 49-82. ISSN 0039-3215.
Chagrov, A.V. and Zakharyaschev, Michael (1991) The disjunction property of intermediate propositional logics. Studia Logica 50 (2), pp. 189-216. ISSN 0039-3215.
The journal of Symbolic Logic
Chagrov, A.V. and Zakharyaschev, M. (1993) The undecidability of the disjunction property of propositional logics and other related problems. The journal of Symbolic Logic 58 (3), pp. 967-1002. ISSN 0022-4812.