SpringerLink (Online service), Glinz, M., & Heymans, P. (2009). Requirements Engineering: Foundation for Software Quality: 15th International Working Conference, REFSQ 2009 Amsterdam, The Netherlands, June 8-9, 2009 Proceedings. Springer Berlin Heidelberg.
Παραπομπή σε μορφή Chicago (17η εκδ.)SpringerLink (Online service), Martin Glinz, και Patrick Heymans. Requirements Engineering: Foundation for Software Quality: 15th International Working Conference, REFSQ 2009 Amsterdam, The Netherlands, June 8-9, 2009 Proceedings. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009.
Παραπομπή σε μορφή MLA (8th εκδ.)SpringerLink (Online service), et al. Requirements Engineering: Foundation for Software Quality: 15th International Working Conference, REFSQ 2009 Amsterdam, The Netherlands, June 8-9, 2009 Proceedings. Springer Berlin Heidelberg, 2009.
