SpringerLink (Online service), Alferes, J., & Leite, J. (2004). Logics in Artificial Intelligence: 9th European Conference, JELIA 2004, Lisbon, Portugal, September 27-30, 2004, Proceedings (1st ed. 2004.). Springer Berlin Heidelberg : Imprint: Springer. https://doi.org/10.1007/b100483
Παραπομπή σε μορφή Chicago (17η εκδ.)SpringerLink (Online service), Jose Alferes, και Joao Leite. Logics in Artificial Intelligence: 9th European Conference, JELIA 2004, Lisbon, Portugal, September 27-30, 2004, Proceedings. 1st ed. 2004. Berlin, Heidelberg: Springer Berlin Heidelberg : Imprint: Springer, 2004. https://doi.org/10.1007/b100483.
Παραπομπή σε μορφή MLA (8th εκδ.)SpringerLink (Online service), et al. Logics in Artificial Intelligence: 9th European Conference, JELIA 2004, Lisbon, Portugal, September 27-30, 2004, Proceedings. 1st ed. 2004. Springer Berlin Heidelberg : Imprint: Springer, 2004. https://doi.org/10.1007/b100483.
