Be-In/Be-Out with Bluetooth Low Energy: Implicit Ticketing for Public Transportation Systems. - Wolfgang Narzt; Stefan Mayerhofer; Otto Weichselbaum; Stefan Haselbock; Niklas Hofler (ITSC, 2015)

Bluetooth Low Energy as enabling technology for Be-In/Be-Out systems. - Wolfgang Narzt; Stefan Mayerhofer; Otto Weichselbaum; Stefan Haselbock; Niklas Hofler (CCNC, 2016)

Designing and Evaluating Barrier-Free Travel Assistance Services. - Wolfgang Narzt; Stefan Mayerhofer; Otto Weichselbaum; Gustav Pomberger; Astrid Tarkus; Martin Schumann (HCI (22), 2016)