JAKUBISOVÁ, Mariana. New trends in environmental education - playful learning on the educational trail. In Public recreation and landscape protection - with sense hand in hand! : conference proceedings, 10th - 11th May 2021 online. - Brno : Mendel University in Brno, 2021. ISBN 978-80-7509-779-8. ISSN 2336-6311, p. 324-328. KEGA 006TU Z-4/2019. SCOPUS. Dostupné na internete: <http://www.cski-cr.cz/wp-content/uploads/2021/01/RaOP-2021_sbornik.pdf>