SpringerLink (Online service), Ogier, J., Liu, W., & Lladós, J. (2010). Graphics Recognition. Achievements, Challenges, and Evolution: 8th International Workshop, GREC 2009, La Rochelle, France, July 22-23, 2009. Selected Papers. Springer Berlin Heidelberg.
Παραπομπή σε μορφή Chicago (17η εκδ.)SpringerLink (Online service), Jean-Marc Ogier, Wenyin Liu, και Josep Lladós. Graphics Recognition. Achievements, Challenges, and Evolution: 8th International Workshop, GREC 2009, La Rochelle, France, July 22-23, 2009. Selected Papers. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010.
Παραπομπή σε μορφή MLA (8th εκδ.)SpringerLink (Online service), et al. Graphics Recognition. Achievements, Challenges, and Evolution: 8th International Workshop, GREC 2009, La Rochelle, France, July 22-23, 2009. Selected Papers. Springer Berlin Heidelberg, 2010.