@article {4089,
	title = {The Impact of Hierarchical Positions on Communities of Learning},
	journal = {International Journal of Computer-Supported Collaborative Learning},
	volume = {10},
	year = {2015},
	pages = {117-138},
	keywords = {Community of Learning, Content Analysis, Hierarchical Positions},
	url = {http://link.springer.com/article/10.1007/s11412-014-9205-8},
	author = {Martin Rehm and Wim Gijselaers and Mien Segers}
}
