Mira Kajko-Mattsson Grace A. Lewis Dave Siracusa Taylor Nelson Ned Chapin Michael Heydt Jason Nocks Harry Snee Long-term Life Cycle Impact of Agile Methodologies. 422-425 2006 conf/icsm/2006 ICSM http://doi.ieeecomputersociety.org/10.1109/ICSM.2006.34 db/conf/icsm/icsm2006.html#Kajko-MattssonLSNCHNS06