@inbook {,
	title = {Reviews zur Bildung im digitalen Wandel: Eine Einf{\"u}hrung in Kontext und Methodik},
	booktitle = {Bildung im digitalen Wandel Die Bedeutung f{\"u}r das p{\"a}dagogische Personal und f{\"u}r die Aus- und Fortbildung},
	year = {2020},
	pages = {7-30},
	publisher = {Waxmann},
	organization = {Waxmann},
	edition = {Digitalisierung in der Bildung, Band 1,},
	address = {M{\"u}nster},
	isbn = {978-3-8309-4199-6},
	doi = {https://doi.org/10.31244/9783830991991},
	url = {https://www.waxmann.com/bildungimdigitalenwandel/},
	author = {A. Wilmers and Anda, C. and Keller, C. and Michael Kerres and Getto, Barbara},
	editor = {A. Wilmers and Anda, C. and Keller, C. and Rittberger, Marc}
}
@article {6121,
	title = {A federated reference structure for open informational ecosystems},
	journal = {Journal of Interactive Media in Education},
	volume = {13},
	year = {2016},
	pages = {1-6},
	chapter = {1},
	abstract = {The paper describes the concept of a federated ecosystem for Open Educational Resources (OER) in the German education system. Here, a variety of OER repositories (ROER) (Muu{\ss}-Merholz \& Schaumburg, 2014) and reference platforms have been established in the recent past. In order to develop this ecosystem,
not only are metadata standards necessary, but also open Application Programming Interfaces (APIs) are required in order to exchange information. In conclusion, it is essential that all relevant stakeholders agree on an explicit policy to be developed collaboratively. A metadata exchange service can serve to connect all partners.},
	keywords = {federated reference structure, informational ecosystems, reference systems, repositories},
	issn = {1365-893X },
	doi = {http://dx.doi.org/10.5334/jime.413},
	url = {http://jime.open.ac.uk/articles/10.5334/jime.413/},
	author = {Heinen, Richard and Michael Kerres and Scharnberg, Gianna and Ingo Blees and Rittberger, Marc}
}
@article {5981,
	title = {Machbarkeitsstudie zum Aufbau und Betrieb von OER-Infrastrukturen in der Bildung},
	year = {2016},
	institution = {DIPF},
	address = {Frankfurt},
	keywords = {OER},
	doi = {urn:nbn:de:0111-pedocs-117154},
	url = {http://www.pedocs.de/frontdoor.php?source_opus=11715},
	author = {Ingo Blees and Hirschmann, Doris and K{\"u}hnlenz, Axel and Rittberger, Marc and Schulte, Jolika and Cohen, Nadia and Massar, Tamara and Heinen, Richard and Michael Kerres and Scharnberg, Gianna and Khenkitisak, Phoutsada}
}
@conference {5691,
	title = {A federate reference structure in an open informational ecosystem},
	booktitle = {OER15 Conference, Cardiff, Wales},
	year = {2015},
	address = {Wales},
	abstract = {The paper will describe a federate ecosystem for OER using the example of the German educational system ,where a variety of ROERs (Muu{\ss}-Merholz \& Schaumburg, 2014) and reference{\textellipsis} 
},
	url = {https://www.researchgate.net/publication/280318233_A_federate_reference_structure_in_an_open_informational_ecosystem},
	author = {Heinen, Richard and Michael Kerres and Schindler, Christoph and Rittberger, Marc}
}
@conference {5689,
	title = {Provisioning strong and weak OER: Requirements of open informational Ecosystems},
	booktitle = {Open Education Global Conference 2015},
	year = {2015},
	address = {Banff, Alberta, Canada },
	url = {https://www.researchgate.net/publication/280317907_Provisioning_strong_and_weak_OER_Requirements_of_open_informational_Ecosystems},
	author = {Heinen, Richard and Michael Kerres and Ingo Blees and Rittberger, Marc}
}
@proceedings {3727,
	title = {Open educational resources and social bookmarking: Connecting Users and Editors},
	year = {2014},
	month = {05/2014},
	pages = {33-40},
	publisher = {Logos Verlag},
	address = {Berlin},
	abstract = {Referatories or reference platform can be filled in three ways: By editorial staff, by automatic aggregation or with user generated content. The article presents two cases of reference plattforms (Elixier and Edutags) using different ways to aggregate the contents. A comparison of the inventories of both systems makes visible that each system can benefit from the other{\textquoteright}s metadata. For the example of OER (open educational ressources) it can be shown how automatic aggretation can support manual tagging. As a conclusion a joint system is suggested that combines different aspects of both platforms.},
	keywords = {Social Bookmarking},
	isbn = {978-3-8325-3686-2},
	url = {http://www.learning-innovations.eu/sites/learning-innovations.eu/files/2014/LINQ_2014_Proceedings_final.pdf$\#$page=33},
	author = {Heinen, Richard and Ingo Blees and Michael Kerres and Rittberger, Marc}
}
@article {3287,
	title = {Offene {\"O}kosysteme f{\"u}r OER},
	year = {2013},
	pages = {28-30},
	url = {http://www.uni-hamburg.de/eLearning/eCommunity/Hamburger_eLearning_Magazin/eLearningMagazin_11.pdf},
	author = {Heinen, Richard and Michael Kerres and Ingo Blees and Rittberger, Marc}
}
