@incollection{GeiblerKuhndtTuerk2005, author = {Geibler, Justus von and Kuhndt, Michael and T{\"u}rk, Volker}, title = {Virtual networking without a backpack? : Resource consumption of information technologies}, booktitle = {Information systems for sustainable development}, editor = {Hilty, Lorenz M.}, publisher = {Idea Group}, address = {Hershey, Pa.}, pages = {109 -- 126}, year = {2005}, language = {en} }