S. Oeste, E. Bittner, M. Söllner, and J. Leimeister. Annual Meeting of the Academy of Management -PDW ‘Management Education and Learning Writers Workshop’, Vancouver, BC, Canada, (2015)
E. Bittner, and J. Leimeister. Exploring Demographics - Transdisziplinäre Perspektiven zur Innovationsfähigkeit im demografischen Wandel, Springer Spektrum, Wiesbaden, Germany, (2015)
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)