@book{Ebner2012,
author = {Ebner, Martin and Schön, Sandra},
year = {2012},
isbn = {978-3-8423-8245-9},
language = {ger},
copyright = {http://creativecommons.org/licenses/by-nc-nd/3.0/de/},
title = {Die Zukunft von Lern- und Lehrmaterialien: Entwicklungen, Initiativen,
Vorhersagen.},
url = "http://dx.doi.org/10.17169/refubium-22952",
}