SpringerLink (Online service), Flum, J., & Rodriguez-Artalejo, M. (1999). Computer Science Logic: 13th International Workshop, CSL'99, 8th Annual Conference of the EACSL, Madrid, Spain, September 20-25, 1999, Proceedings (1st ed. 1999.). Springer Berlin Heidelberg : Imprint: Springer. https://doi.org/10.1007/3-540-48168-0
Παραπομπή σε μορφή Chicago (17η εκδ.)SpringerLink (Online service), Jörg Flum, και Mario Rodriguez-Artalejo. Computer Science Logic: 13th International Workshop, CSL'99, 8th Annual Conference of the EACSL, Madrid, Spain, September 20-25, 1999, Proceedings. 1st ed. 1999. Berlin, Heidelberg: Springer Berlin Heidelberg : Imprint: Springer, 1999. https://doi.org/10.1007/3-540-48168-0.
Παραπομπή σε μορφή MLA (8th εκδ.)SpringerLink (Online service), et al. Computer Science Logic: 13th International Workshop, CSL'99, 8th Annual Conference of the EACSL, Madrid, Spain, September 20-25, 1999, Proceedings. 1st ed. 1999. Springer Berlin Heidelberg : Imprint: Springer, 1999. https://doi.org/10.1007/3-540-48168-0.
