C. Fürst, A. Kriuger, B. Warner, E. Ehrlich, and L. Fenger, “The concept of ecosystem services in environmental education. Exemplary approaches at schools, universities and in the further education scene for planners”., RuR, vol. 80, no. 1, pp. 97–111, Feb. 2022, doi: 10.14512/rur.73.