SpringerLink (Online service), Kreveld, M. v., & Speckmann, B. (2012). Graph Drawing: 19th International Symposium, GD 2011, Eindhoven, The Netherlands, September 21-23, 2011, Revised Selected Papers. Springer Berlin Heidelberg : Imprint: Springer.
Παραπομπή σε μορφή Chicago (17η εκδ.)SpringerLink (Online service), Marc van Kreveld, και Bettina Speckmann. Graph Drawing: 19th International Symposium, GD 2011, Eindhoven, The Netherlands, September 21-23, 2011, Revised Selected Papers. Berlin, Heidelberg: Springer Berlin Heidelberg : Imprint: Springer, 2012.
Παραπομπή σε μορφή MLA (8th εκδ.)SpringerLink (Online service), et al. Graph Drawing: 19th International Symposium, GD 2011, Eindhoven, The Netherlands, September 21-23, 2011, Revised Selected Papers. Springer Berlin Heidelberg : Imprint: Springer, 2012.
