SpringerLink (Online service), Regnell, B., & Damian, D. (2012). Requirements Engineering: Foundation for Software Quality: 18th International Working Conference, REFSQ 2012, Essen, Germany, March 19-22, 2012. Proceedings. Springer Berlin Heidelberg.
Παραπομπή σε μορφή Chicago (17η εκδ.)SpringerLink (Online service), Björn Regnell, και Daniela Damian. Requirements Engineering: Foundation for Software Quality: 18th International Working Conference, REFSQ 2012, Essen, Germany, March 19-22, 2012. Proceedings. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012.
Παραπομπή σε μορφή MLA (8th εκδ.)SpringerLink (Online service), et al. Requirements Engineering: Foundation for Software Quality: 18th International Working Conference, REFSQ 2012, Essen, Germany, March 19-22, 2012. Proceedings. Springer Berlin Heidelberg, 2012.
