SpringerLink (Online service), Abiteboul, S., & Vercoustre, A. (1999). Research and Advanced Technology for Digital Libraries: Third European Conference, ECDL'99, Paris, France, September 22-24, 1999, Proceedings (1st ed. 1999.). Springer Berlin Heidelberg : Imprint: Springer. https://doi.org/10.1007/3-540-48155-9
Παραπομπή σε μορφή Chicago (17η εκδ.)SpringerLink (Online service), Serge Abiteboul, και Anne-Marie Vercoustre. Research and Advanced Technology for Digital Libraries: Third European Conference, ECDL'99, Paris, France, September 22-24, 1999, Proceedings. 1st ed. 1999. Berlin, Heidelberg: Springer Berlin Heidelberg : Imprint: Springer, 1999. https://doi.org/10.1007/3-540-48155-9.
Παραπομπή σε μορφή MLA (8th εκδ.)SpringerLink (Online service), et al. Research and Advanced Technology for Digital Libraries: Third European Conference, ECDL'99, Paris, France, September 22-24, 1999, Proceedings. 1st ed. 1999. Springer Berlin Heidelberg : Imprint: Springer, 1999. https://doi.org/10.1007/3-540-48155-9.
