K. Gomboc, „Back to Nature: Exploring the Potential for Implementing the Norwegian Idea of Outdoor Days in the Slovenian School System“, REI, let. 9, št. 4, str. 123–138, dec. 2016, Pridobljeno: 8. november 2025. [Na spletu]. Dostopno na: https://old.journals.um.si/index.php/education/article/view/345