Better Questions, Better Answers: Structured Web Accessibility Evaluations for Non-Experts. - Christian Bühler; Helmut Heck; Annika Nietzio; Frank Berker; Mikael Snaprud (AAATE Conf., 2015)

Way-Finding Support in Public Transport Environments provided by the NAMO Mobile Travel Assistance System. - Christian Bühler; Helmut Heck; Annika Nietzio; Frank Reins; Frank Berker (AAATE Conf., 2015)

Customised City Maps in Mobile Applications for Senior Citizens. - Frank Reins; Frank Berker; Helmut Heck (AAATE Conf., 2017)

Co-creation of a Mobile City District Guide with and for Older Adults. - Frank Berker; Frank Reins; Helmut Heck (ICCHP (2), 2018)