@inbook {
	title = {Why teachers share educational resources: A social exchange perspective},
	year = {2013},
	month = {05/2013},
	author = {Van Acker, Frederik and van Buuren, Hans and Kreijns, Karel and Vermeulen, Marjan},
	editor = {McGreal, Rory and Kinuthia, Wanjira and Marshall, Stewart},
	keywords = {social exchange, open license, knowledge sharing, digital learning materials},
	language = {en},
	publisher = {Commonwealth of Learning, Athabasca University},
	pages = {177-192},
	isbn = {978-1-894975-62-9},
	refereed = {yes},
	url = {https://oerknowledgecloud.org/sites/oerknowledgecloud.org/files/pub_PS_OER-IRP_web.pdf#page=203},
	attachments = {pub_PS_OER-IRP_CH13.pdf},
}