Ochoa Siguencia L, Marzano G, Ochoa-Daderska R, Gródek-Szostak Z, Szeląg-Sikora A. COVID-19 AND EDUCATION MANAGEMENT: THE CASE OF SILESIAN REGION - POLAND. ETR [Internet]. 2021 Jun. 17 [cited 2024 May 3];2:162-8. Available from: https://journals.ru.lv/index.php/ETR/article/view/6547