SpringerLink (Online service), Güting, R. H., Papadias, D., & Lochovsky, F. (1999). Advances in Spatial Databases: 6th International Symposium, SSD'99, Hong Kong, China, July 20-23, 1999 Proceedings (1st ed. 1999.). Springer Berlin Heidelberg : Imprint: Springer. https://doi.org/10.1007/3-540-48482-5
Παραπομπή σε μορφή Chicago (17η εκδ.)SpringerLink (Online service), Ralf H. Güting, Dimitris Papadias, και Fred Lochovsky. Advances in Spatial Databases: 6th International Symposium, SSD'99, Hong Kong, China, July 20-23, 1999 Proceedings. 1st ed. 1999. Berlin, Heidelberg: Springer Berlin Heidelberg : Imprint: Springer, 1999. https://doi.org/10.1007/3-540-48482-5.
Παραπομπή σε μορφή MLA (8th εκδ.)SpringerLink (Online service), et al. Advances in Spatial Databases: 6th International Symposium, SSD'99, Hong Kong, China, July 20-23, 1999 Proceedings. 1st ed. 1999. Springer Berlin Heidelberg : Imprint: Springer, 1999. https://doi.org/10.1007/3-540-48482-5.
