Innovative Innovative Educational Technologies, Tools and Methods for E-learning : 12th Annual International Scientific Conference Theoretical and Practical Aspects of Distance Learning (DLCC 2020). Katowice-Cieszyn, Poland. October 12-13, 2020 / rec. Piet Kommers, Olena Glazunova. -- Katowice : Studio Noa for University of Silesia, 2020. -- 335 s. -- (E-learning, ; Vol. 12 ISSN 2451-3644 ISSN 2451-3652 (online)). -- ISBN : 978-83-66055-19-3. Kommers, Piet. Glazunova, Olena