Theodoros Balopoulos Stelios Dritsas Lazaros Gymnopoulos Maria Karyda Spyros Kokolakis Stefanos Gritzalis Incorporating Security Requirements Into the Software Development Process. 21-28 2005 conf/eciw/2005 ECIW db/conf/eciw/eciw2005.html#BalopoulosDGKKG05