User Requirements Regarding Information Included in Audio-Tactile Maps for Individuals with Blindness. - Konstantinos Papadopoulos 001; Konstantinos Charitakis; Lefkothea Kartasidou; Georgios Kouroupetroglou; Suad Sakalli Gumus; Efstratios Stylianidis; Rainer Stiefelhagen; Karin Müller 001; Engin Yilmaz; Gerhard Jaworek; Christos Polimeras; Utku Sayin; et al. (ICCHP (2), 2016)