Gamification Framework for Personalized Surveys on Relationships in Online Social Networks. - Michael Seufert; Karl Lorey; Matthias Hirth; Tobias Hoßfeld (UCC, 2013)

TEAL: Transparent Encryption for the Database Abstraction Layer. - Karl Lorey; Erik Buchmann; Klemens Böhm (CAiSE Forum, 2016)

Assessment of subjective influence and trust with an online social network game. - Michael Seufert; Valentin Burger; Karl Lorey; Alexander Seith; Frank Loh; Phuoc Tran-Gia (Comput. Hum. Behav., 2016)