N.  Malzahn, Giemza, A., and Schloetmann, J., ?Fokussierungseffekte bei Multimedia-Guides?, Museum Aktuell, vol. 2014, no. 09, pp. 9-14, 2014.

A.  Giemza, Malzahn, N., and H. Hoppe, U., ?Mobilogue: Creating and Conducting Mobile Learning Scenarios in Informal Settings?, in The 21st International Conference on Computers in Education (ICCE 2013), Denpasar Bali, Indonesia, 2013.

A.  Giemza, Malzahn, N., and H. Hoppe, U., ?Museumsführungen mit Mobilogue ? einem Werkzeug zur Erstellung und Ausführung von mobilen Lernszenarien?, in DeLFI 2013, Bremen, 2013.

A.  Giemza, Verheyen, P., and Hoppe, H. U., ?Challenges in scaling mobile learning applications: the example of quizzer?, in Wireless, Mobile and Ubiquitous Technology in Education (WMUTE 2012) IEEE Seventh International Conference on, 2012, pp. 287?291.

N.  Malzahn, Giemza, A., and Hoppe, H. U., ?IT-Architekturen und Infrastrukturen?, in CSCL-Kompendium 2.0 - Lehr- und Handbuch zum computerunterstützten kooperativen Lernen, J.  Haake, Schwabe, G., and Wessner, M., Eds. 2012.

A.  Wichmann, Giemza, A., Hoppe, H. U., and Krauß, M., ?Effects of awareness support on moderating multiple parallel e-discussions?, in Proceedings of the 9th international conference on Computer supported collaborative learning - Volume 1, 2009.

L.  Bollen, Giemza, A., and Hoppe, H. U., ?Flexible analysis of user actions in heterogeneous distributed learning environments?, in Times of Convergence. Technologies Across Learning Contexts, Springer, 2008.

A.  Harrer, Ziebarth, S., Giemza, A., and Hoppe, H. U., ?A framework to support monitoring and moderation of e-discussions with heterogeneous discussion tools?, in  8th IEEE International Conference on Advanced Learning Technologies (ICALT'08), 2008, pp. 41?45.