Frank Wolter
Handbook of modal logic
Description Logic, Theory Combination, and All That
Fundamentals of Computation Theory
Handbook of modal logic
Principles of Knowledge Representation and Reasoning
Struckturelle Anpassungsprobleme der westdeutschen Stahlindustrie
Factor proportions, technology and West German industry's international trade patterns, worldwide and regional
Koordination im internationalen Umweltmanagement
Lattices of modal logics
Perspectives for the international location of the steel industry
The impact of manufactured imports from developing countries in the Federal Republic of Germany