Parametric design and its impact on solid modeling applications. - Reiner Anderl; Ralf Mendgen (Symposium on Solid Modeling and Applications, 1995)

Modelling with constraints: theoretical foundation and application. - Reiner Anderl; Ralf Mendgen (Comput. Aided Des., 1996)

Methodische Vorgehensweise zur Modellierung in parametrischen und featurebasierten 3D-CAD-Systemen. - Ralf Mendgen (Shaker, 1999)

Cross-Border E-Collaboration for New Product Development in the Automotive Industry. - Élisabeth Lefebvre; Louis A. Lefebvre; Gaël Le Hen; Ralf Mendgen (HICSS, 2006)