https://news.essmt.sk/2020/10/02/inovativne-vyucovanie-ako-a-preco/
https://news.essmt.sk/2020/11/05/principy-hejneho-metody-2-cast/
https://news.essmt.sk/2020/12/11/principy-hejneho-metody-3-cast/
https://news.essmt.sk/2021/02/12/principy-hejneho-metody-krizom-krazom-prostrediami-4-cast/