@inbook {1565,
	title = {Designing and studying educational games:  Limitations of current design and research approaches  in game-based learning},
	booktitle = {Playing with Virtuality, Theories and Methods of Computer Game Studies},
	year = {2013},
	pages = {349-368},
	publisher = {Peter Lang},
	organization = {Peter Lang},
	address = {Frankfurt},
	author = {Michael Filsecker and Michael Kerres},
	editor = {Bigl, Benjamin and Stoppe, Sebastian}
}
