SpringerLink (Online service) & Baumgart, R. (1999). Secure Networking - CQRE (Secure) '99: International Exhibition and Congress Düsseldorf, Germany, November 30 - December 2, 1999, Proceedings (1st ed. 1999.). Springer Berlin Heidelberg : Imprint: Springer. https://doi.org/10.1007/3-540-46701-7
Παραπομπή σε μορφή Chicago (17η εκδ.)SpringerLink (Online service) και Rainer Baumgart. Secure Networking - CQRE (Secure) '99: International Exhibition and Congress Düsseldorf, Germany, November 30 - December 2, 1999, Proceedings. 1st ed. 1999. Berlin, Heidelberg: Springer Berlin Heidelberg : Imprint: Springer, 1999. https://doi.org/10.1007/3-540-46701-7.
Παραπομπή σε μορφή MLA (8th εκδ.)SpringerLink (Online service) και Rainer Baumgart. Secure Networking - CQRE (Secure) '99: International Exhibition and Congress Düsseldorf, Germany, November 30 - December 2, 1999, Proceedings. 1st ed. 1999. Springer Berlin Heidelberg : Imprint: Springer, 1999. https://doi.org/10.1007/3-540-46701-7.
