SpringerLink (Online service), Kalcsics, J., & Nickel, S. (2008). Operations Research Proceedings 2007: Selected Papers of the Annual International Conference of the German Operations Research Society (GOR) Saarbrücken, September 5–7, 2007. Springer Berlin Heidelberg.
Παραπομπή σε μορφή Chicago (17η εκδ.)SpringerLink (Online service), Jörg Kalcsics, και Stefan Nickel. Operations Research Proceedings 2007: Selected Papers of the Annual International Conference of the German Operations Research Society (GOR) Saarbrücken, September 5–7, 2007. Berlin, Heidelberg: Springer Berlin Heidelberg, 2008.
Παραπομπή σε μορφή MLA (8th εκδ.)SpringerLink (Online service), et al. Operations Research Proceedings 2007: Selected Papers of the Annual International Conference of the German Operations Research Society (GOR) Saarbrücken, September 5–7, 2007. Springer Berlin Heidelberg, 2008.
