SpringerLink (Online service) & Zhang, L. (2004). Web Services: European Conference, ECOWS 2004, Erfurt, Germany, September 27-30, 2004, Proceedings (1st ed. 2004.). Springer Berlin Heidelberg : Imprint: Springer. https://doi.org/10.1007/b100919
Παραπομπή σε μορφή Chicago (17η εκδ.)SpringerLink (Online service) και Liang-Jie Zhang. Web Services: European Conference, ECOWS 2004, Erfurt, Germany, September 27-30, 2004, Proceedings. 1st ed. 2004. Berlin, Heidelberg: Springer Berlin Heidelberg : Imprint: Springer, 2004. https://doi.org/10.1007/b100919.
Παραπομπή σε μορφή MLA (8th εκδ.)SpringerLink (Online service) και Liang-Jie Zhang. Web Services: European Conference, ECOWS 2004, Erfurt, Germany, September 27-30, 2004, Proceedings. 1st ed. 2004. Springer Berlin Heidelberg : Imprint: Springer, 2004. https://doi.org/10.1007/b100919.
