@article {zierbarth_matchballs_2012,
	title = {Matchballs - a Casual Game for Learning and Domain Ontology Enrichment},
	journal = {International Conference of the Learning Sciences (ICLS 2012)},
	year = {2012},
	note = {00000},
	author = {Sabrina Ziebarth and Nils Malzahn and H. Ulrich Hoppe}
}
