@inproceedings{WilkeBongardt2005, author = {Wilke, Georg and Bongardt, Daniel}, title = {Eco-efficiency of car-sharing at risk?}, booktitle = {Energy savings : what works \& who delivers ; ECEEE 2005 Summer Study Proceedings ; volume 2}, publisher = {Europ. Council for an Energy Efficient Economy}, address = {Stockholm}, pages = {659 -- 669}, year = {2005}, language = {en} }