C. Peters, and J. Leimeister. Eighth International Conference on Design Science Research in Information Systems and Technology (DESRIST), Helsinki, Finland, (2013)JML_397.
A. Hoffmann, E. Bittner, and J. Leimeister. Requirements Engineering: Foundation for Software Quality, Lecture Notes in Computer Science, 7830, Springer Verlag, Essen, Germany, JML_395.(2013)