@proceedings {12267,
	title = {Development Process of E-Learning at the University of Duisburg-Essen: Lessons Learnt and Future Tasks},
	year = {2017},
	month = {2017},
	pages = {8646-8652},
	publisher = {IATED},
	address = {Spain},
	doi = {10.21125/edulearn.2017},
	url = {https://library.iated.org/publications/EDULEARN17},
	author = {Petschenka, Anke and Heinrich, Sandrina and Liebscher, J. and Helmstedt, Cornelia and van Ackeren, Isabell},
	editor = {G{\'o}mez Chova, L. and L{\'o}pez Mart{\'\i}nez, A and Candel Torres, I.}
}
