H. Heck, O. Kieselmann, N. Kopal, и A. Wacker. IFIP International Conference on Distributed Applications and Interoperable Systems (DAIS), том 10853 из Lecture Notes in Computer Science, стр. 110-121. Springer, Springer, (июня 2018)
J. Hähner, S. Rudolph, S. Tomforde, D. Fisch, B. Sick, N. Kopal, и A. Wacker. 1st International Workshop on „Self-optimisation in organic and autonomic computing systems“ (SAOS13), held in conjunction with 26th International Conference on Architecture of Computing Systems (ARCS 2013), Prague, Czech Republic, (19-22 02 2013)
O. Kieselmann, N. Kopal, и A. Wacker. 10th DPM International Workshop on Data Privacy Management (DPM 2015), co-located with 20th European Symposium on Research in Computer Security (ESORICS 2015), стр. 134--149. Vienna, Austria, (сентября 2015)
O. Kieselmann, N. Kopal, и A. Wacker. 10. Berliner Werkstatt Mensch-Maschine-Systeme - Grundlagen und Anwendungen der Mensch-Maschine-Interaktion, Berlin, (Oktober 2013)
N. Kopal, O. Kieselmann, и A. Wacker. 1st International Workshop on Signal Processing for Secure Communications (SP4SC-2015), held in conjunction with 3rd International Conference on Future Internet of Things and Cloud (FiCloud 2015), Rome, Italy, IEEE, (2015)
N. Kopal, M. Wander, C. Konze, и H. Heck. IFIP International Conference on Distributed Applications and Interoperable Systems (DAIS), стр. 192-205. Springer, Springer, (2017)