ML-1993-17: Chagrov, Alexander and Zakharyaschev, Michael (1993) On the Independent Axiomatizability of Modal and Intermediate Logics. [Report]
X-1991-11: Zakharyaschev, Michael (1991) Canonical Formulas for K4. Part I: Basic Results. [Report]
X-1991-01: Chagrov, Alexander and Zakharyaschev, Michael (1991) The Disjunction Property of Intermediate Propositional Logics. [Report]
X-1991-02: Chagrov, Alexander and Zakharyaschev, Michael (1991) On the Undecidability of the Disjunction Property of Intermediate Propositional Logics. [Report]