Yordanov V, Yordanov E. “Study in the Mountain” – the Influence of the Mountain Environment on Certain Mental Components and Students’ Academic Performance During Sessions. НТ [Internet]. 2017 Dec. 21 [cited 2026 Jul. 23];(2):221-32. Available from: https://bjiep.e-dnrs.org/index.php/rp/article/view/5617