Barnová S, Krásna S, Geršicová Z. Secondary School Students’ Experience with Online Lessons during the First Two Waves of the COVID-19 Pandemic. R&E-SOURCE [Internet]. 29. Juli 2022 [zitiert 4. Mai 2024];(S24). Verfügbar unter: https://journal.ph-noe.ac.at/index.php/resource/article/view/1102