@article {2015, title = {Self-Enriching Ontology-Based Casual Learning Games}, journal = {COMPUTING AND INFORMATICS}, volume = {34}, year = {2015}, pages = {652{\textendash}677}, author = {Malzahn, Nils and Ziebarth, Sabrina and Kloke, Dominik and Hoppe, H Ulrich} } @inbook {2014, title = {Enriching (Learning) Community Platforms with Learning Analytics Components}, booktitle = {Collaboration and Technology}, series = {Lecture Notes in Computer Science}, volume = {8658}, year = {2014}, pages = {177-184}, publisher = {Springer International Publishing}, organization = {Springer International Publishing}, keywords = {analysis workbench, integration, learning analytics}, isbn = {978-3-319-10165-1}, doi = {10.1007/978-3-319-10166-8_16}, url = {http://dx.doi.org/10.1007/978-3-319-10166-8_16}, author = {G{\"o}hnert, Tilman and Ziebarth, Sabrina and Malzahn, Nils and Hoppe, H. Ulrich}, editor = {Baloian, Nelson and Burstein, Frada and Ogata, Hiroaki and Santoro, Flavia and Zurita, Gustavo} }