1.+2. APN 1980, 1981: Bad Honnef, Germany / Strasbourg, France

Part One: First European Workshop on Application and Theory of Petri Nets

Application of Nets to Real-Time Systems

Programming Languages and Software Engineering

Information Flow and Concurrency

Net Morphisms and Higher Level Net Interpretations

Mathematical Analysis and Net Languages

Reliability and Recovery Issues

Part Two: Second European Workshop on Application and Theory of Petri Nets