Agile methods large-scale development, refactoring, testing, and estimation : XP 2014 International Workshops, Rome, Italy, May 26-30, 2014 : revised selected papers - Dingsøyr, Torgeir; Moe, Nils Brede; Tonelli, Roberto; Counsell, Steve; Gencel, Cigdem; Petersen, Kai (Springer, 2014)