Hutek, Paulina, and Mirosława Sajka. 2020. “Remote Teaching and Learning of Secondary School Mathematics During the First Wave of the COVID-19 Pandemic from the Perspective of Selected Teachers and Students”. Annales Universitatis Paedagogicae Cracoviensis | Studia Ad Didacticam Mathematicae Pertinentia 12 (December):133-72. https://doi.org/10.24917/20809751.12.7.