Lonely online: a social model of digital media addiction : a study in 21 countries - Blachnio, Agata; Przepiórka, Aneta; Gorbaniuk, Oleg; McNeill, Monika; Bendayan, Rebecca; Ben-Ezra, Menachem; Angeluci, Alan; Abreu, Ana Maria; Blanca, Maria J.; Brkljacic, Tihana; Babić, Nenad Čuš; Durak, Mithat; et al. (Social science journal, 2024)