Čolaković G, Anđelić S, Naćić M. HELLO 194? THIS IS COVID-19 CALLING! . Halo 194 [Internet]. 28. Avgust 2020. [citirano 12. Juli 2026.];26(2):94-5. Dostupno na: https://asistent.ceon.rs/index.php/halo/article/view/27116