P. A.  Haya, Daems, O., Malzahn, N., Castellanos, J., and H. Hoppe, U., ?Analysing content and patterns of interaction for improving the learning design of networked learning environments?, British Journal of Educational Technology, 2015.

S.  Manske and H. Hoppe, U., ?Automated Indicators to Assess the Creativity of Solutions to Programming Exercises?, in 2014 IEEE 14th International Conference on Advanced Learning Technologies, 2014.