X-1992-01: Wansing, Heinrich (1992) The Logic of Information Structures. [Report]
LP-1992-12: Wansing, Heinrich (1992) Sequent Caluli for Normal Modal Propositional Logics. [Report]
LP-1989-07: Wansing, Heinrich (1989) The Adequacy Problem for Sequential Propositional Logic. [Report]