@misc{648, author = {Bernhard Hoisl}, title = {Motivate online community contributions using social rewarding techniques : a focus on Wiki systems}, year = {2007}, journal = {Institute of Visual Computing and Human-Centered Technology}, pages = {154}, publisher = {TU Wien}, address = {Vienna}, url = {https://web.archive.org/web/20210417124910/http://ieg.ifs.tuwien.ac.at/projects/SocialRewarding/}, }