The German Version of the Mobile App Rating Scale (MARS-G): Development and Validation Study - Messner, Eva-Maria; Terhorst, Yannik; Barke, Antonia; Baumeister, Harald; Stoyanov, Stoyan; Hides, Leanne; Kavanagh, David; Pryss, Rüdiger; Sander, Lasse; Probst, Thomas (JMIR mHealth and uHealth, 2020)