Use of OCL in a Model Assessment Framework: An experience report. - Joanna Dobroslawa Chimiak-Opoka; Chris Lenz (Electron. Commun. Eur. Assoc. Softw. Sci. Technol., 2006)

Towards Operationalizing Strategic Alignment of IT by Usage of Software Engineering Methods. - Bernd Tilg; Joanna Chimiak-Opoka; Chris Lenz; Ruth Breu (BIS, 2007)

Querying UML Models using OCL and Prolog: A Performance Study. - Joanna Chimiak-Opoka; Michael Felderer; Chris Lenz; Christian Lange 001 (ICST Workshops, 2008)