Stamatis Karnouskos Robert J. Kauffman Elaine Lawrence Key Pousttchi Guest Editorial: Research advances for the mobile payments arena. 137-140 2008 7 Electronic Commerce Research and Applications 2 http://dx.doi.org/10.1016/j.elerap.2007.08.001 db/journals/ecra/ecra7.html#KarnouskosKLP08