Ulaga, W., &; Eggert, A. (2006). Value-based differentiation in business relationships: Gaining and sustaining key supplier status. Journal of Marketing, (1), 119--136.

Ulaga, W., &; Eggert, A. (2006). Relationship value and relationship quality: Broadening the Nomological Network of Business-to-Business Relationships. European Journal of Marketing, 40(3/4), 311–327.https://doi.org/10.1108/03090560610648075 

Fahr, R., &; Sunde, U. (2006). Spatial mobility and competition for jobs: Some theory and evidence for Western Germany. Regional Science and Urban Economics, (6), 803--825.

Fahr, R., &; Sunde, U. (2006). Regional dependencies in job creation: an efficiency analysis for Western Germany. Applied Economics, (10), 1193--1206.

Fahr, R. (2006). The wage effects of social norms: evidence of deviations from peers’ body-mass in Europe.

Heckel, R., &; Lohmann, M. (2006). Model-Driven Development of Reactive Information Systems: From Graph Transformation Rules to JML Contracts. International Journal on Software Tools for Technology Transfer (STTT), 9(2), 193–207.

Küster, J. (2006). Definition and Validation of Model Transformations. Software and Systems Modeling, 5(3), 233–259.http://dx.doi.org/10.1007/s10270-006-0018-8 

Eggert, A., Ulaga, W., &; Schultz, F. (2006). Value Creation in the Relationship Lifecycle: A Quasi-Longitudinal Analysis. Industrial Marketing Management, 35(1), 20–27.

Engels, G., Lohmann, M., &; Wagner, A. (2006). The Web Application Development Process. In G. Kappel, B. Pröll, S. Reich, W. Retschitzegger (Ed.), Web Engineering: The Discipline of Systematic Development of Web Applications. Wiley.

Lohmann, M. (2006). Kontraktbasierte Modellierung, Implementierung und Suche von Komponenten in serviceorientierten Architekturen.