Capturing Dynamic Program Behaviour with UML Collaboration Diagrams. - Ralf Kollmann; Martin Gogolla (CSMR, 2001)

Application of UML Associations and Their Adornments in Design Recovery. - Ralf Kollmann; Martin Gogolla (WCRE, 2001)

Metric-Based Selective Representation of UML Diagrams. - Ralf Kollmann; Martin Gogolla (CSMR, 2002)

An Integrated Semantics for UML Class, Object and State Diagrams Based on Graph Transformation. - Sabine Kuske; Martin Gogolla; Ralf Kollmann; Hans-Jörg Kreowski (IFM, 2002)

A Study on the Current State of the Art in Tool-Supported UML-Based Static Reverse Engineering. - Ralf Kollmann; Petri Selonen; Eleni Stroulia; Tarja Systä; Albert Zündorf (WCRE, 2002)

Design recovery techniques for object oriented software systems. - Ralf Kollmann (Logos-Verlag, 2003)

Experiences with an Industrial Long-Term Reengineering Project. - Ralf Kollmann (WCRE, 2004)