SpringerLink (Online service), Leuschel, M., & Wehrheim, H. (2009). Integrated Formal Methods: 7th International Conference, IFM 2009, Düsseldorf, Germany, February 16-19, 2009. Proceedings. Springer Berlin Heidelberg : Imprint: Springer.
Παραπομπή σε μορφή Chicago (17η εκδ.)SpringerLink (Online service), Michael Leuschel, και Heike Wehrheim. Integrated Formal Methods: 7th International Conference, IFM 2009, Düsseldorf, Germany, February 16-19, 2009. Proceedings. Berlin, Heidelberg: Springer Berlin Heidelberg : Imprint: Springer, 2009.
Παραπομπή σε μορφή MLA (8th εκδ.)SpringerLink (Online service), et al. Integrated Formal Methods: 7th International Conference, IFM 2009, Düsseldorf, Germany, February 16-19, 2009. Proceedings. Springer Berlin Heidelberg : Imprint: Springer, 2009.
