Environment challenges of e-learning in higher education - the teachers' perspectiveLeoste, Janika; Jõgi, Larissa; Õun, Tiia; Marjanovic, Ugljesa; Rakic, Slavko; Schöndorfer, Simone; Lefkofridi, ZoePolyphonic construction of smart learning ecosystems : proceedings of the 7th Conference on Smart Learning Ecosystems and Regional Development2023 / p. 143-156 https://doi.org/10.1007/978-981-19-5240-1_10 Uso del aprendizaje híbrido para afrontar la incertidumbre ante las condiciones de enseñanza durante la crisis del covid-19. un caso de estudioLeoste, Janika; Trabada, Ana Verde; Pastor, Luis; Tuul, Maire; Õun, TiiaA educação e suas generalidades ; 12022 / p. 149–173 https://doi.org/10.35587/brj.ed.0001699