SpringerLink (Online service) & Ras, Z. W. (1999). Foundations of Intelligent Systems: 11th International Symposium, ISMIS'99, Warsaw, Poland, June 8-11, 1999, Proceedings (1st ed. 1999.). Springer Berlin Heidelberg : Imprint: Springer. https://doi.org/10.1007/BFb0095085
Παραπομπή σε μορφή Chicago (17η εκδ.)SpringerLink (Online service) και Zbigniew W. Ras. Foundations of Intelligent Systems: 11th International Symposium, ISMIS'99, Warsaw, Poland, June 8-11, 1999, Proceedings. 1st ed. 1999. Berlin, Heidelberg: Springer Berlin Heidelberg : Imprint: Springer, 1999. https://doi.org/10.1007/BFb0095085.
Παραπομπή σε μορφή MLA (8th εκδ.)SpringerLink (Online service) και Zbigniew W. Ras. Foundations of Intelligent Systems: 11th International Symposium, ISMIS'99, Warsaw, Poland, June 8-11, 1999, Proceedings. 1st ed. 1999. Springer Berlin Heidelberg : Imprint: Springer, 1999. https://doi.org/10.1007/BFb0095085.