@incollection{Boyadjiev20,
author = {Nikolay Boyadjiev and Katerina Nikolova Georgieva and Penka Angelova Angelova Hristova},
title = {Outdoor Recreation: Physiological Effects and Prevention of Socially Important Diseases},
booktitle = {Outdoor Recreation},
publisher = {IntechOpen},
address = {Rijeka},
year = {2020},
editor = {Hilde G. Nielsen},
chapter = {2},
doi = {10.5772/intechopen.93331},
url = {https://doi.org/10.5772/intechopen.93331}
}