@article{Atzmueller:12c, author = {Atzmueller, Martin}, interhash = {0b20c1d53d5df05326d594726273c2fb}, intrahash = {7b616e64994893a2aad95b5ad95db662}, journal = {WIREs: Data Mining and Knowledge Discovery}, title = {{Mining Social Media: Key Players, Sentiments, and Communities}}, volume = {In Press}, year = 2012 }