Biloš, Antun, Davorin Turkalj, and Ivan Kelić. “Mobile Learning Usage and Preferences of Vocational Secondary School Students: The Cases of Austria, the Czech Republic, and Germany”. Naše gospodarstvo/Our economy 63, no. 1 (July 27, 2017): 59–69. Accessed November 24, 2025. https://old.journals.um.si/index.php/oe/article/view/2218.