Time to go green? <subtitle>Nature-based physical activity as potential treatment for mental disorders</subtitle> - Carina Nigg; Jasper Schipperijn; Oliver Hennig; Moritz Bruno Petzold; Ellen Rulf; Andreas Meyer-Lindenberg; Heike Tost; Ulrich W. Ebner-Priemer; Markus Reichert (Hogrefe AG, 2022)