@inproceedings{TUW-255439, author = {Werthner, Hannes}, title = {E-tourism: History and Challenges}, booktitle = {Proceedings of the Workshop on Recommenders in Tourism}, year = {2016}, url = {http://www.ec.tuwien.ac.at/rectour2016/wp-content/uploads/Werthner_Keynote_RecTour2016.pdf}, note = {eingeladen; Vortrag: RecTour 2016 - Workshop on Recommenders in Tourism at ACM RecSys 2016, Boston, MA, USA; 2016-09-15} }