SpringerLink (Online service), Eck, P. v., Gordijn, J., & Wieringa, R. (2009). Advanced Information Systems Engineering: 21st International Conference, CAiSE 2009, Amsterdam, The Netherlands, June 8-12, 2009. Proceedings. Springer Berlin Heidelberg : Imprint: Springer.
Παραπομπή σε μορφή Chicago (17η εκδ.)SpringerLink (Online service), Pascal van Eck, Jaap Gordijn, και Roel Wieringa. Advanced Information Systems Engineering: 21st International Conference, CAiSE 2009, Amsterdam, The Netherlands, June 8-12, 2009. Proceedings. Berlin, Heidelberg: Springer Berlin Heidelberg : Imprint: Springer, 2009.
Παραπομπή σε μορφή MLA (8th εκδ.)SpringerLink (Online service), et al. Advanced Information Systems Engineering: 21st International Conference, CAiSE 2009, Amsterdam, The Netherlands, June 8-12, 2009. Proceedings. Springer Berlin Heidelberg : Imprint: Springer, 2009.
