@inbook {9867,
	title = {Bridging Personal Learning Environment: Interfacing personal envionments and Learning Management Systems: The Example of a bookmarking tool},
	booktitle = {The PLE Conference 2013 Learning and Diversity in the Cities of the Future},
	year = {2013},
	pages = {52-67},
	publisher = {Beuth University of Applied Science},
	organization = {Beuth University of Applied Science},
	author = {Tobias H{\"o}lterhof and Heinen, R.},
	editor = {Ilona Buchem and Attwell, G. and Tur, G.}
}
