Mika Murtojärvi Jouni Järvinen Mika Johnsson Timo Leipälä Olli Nevalainen Determining the Proper Number and Price of Software Licenses. 305-315 2007 33 IEEE Trans. Software Eng. 5 http://doi.ieeecomputersociety.org/10.1109/TSE.2007.1003 db/journals/tse/tse33.html#MurtojarviJJLN07