Mechanismen zur Nachweisbarkeit der Kommunikation bei OSCI Transport. - Jörg Apitzsch (Datenschutz und Datensicherheit, 2007)

A General Quality Classification System for eIDs and e-Signatures. - Jon Ølnes; Leif Buene; Anette Andresen; Håvard Grindheim; Jörg Apitzsch; Adriano Rossi (ISSE, 2009)

An interoperability standard for certified mail systems. - Arne Tauber; Jörg Apitzsch; Luca Boldrin (Comput. Stand. Interfaces, 2012)