Nørby, S. & Myszak, A. (2008). Efterskrift. In A. Myszak & S. Nørby (Eds.), Positiv psykologi: En introduktion til videnskaben om velvære og optimale processer (pp. 317-319). Hans Reitzels Forlag.
Schnack, K. (2008). ESD refers to human needs: what does that mean? In N. A. Lobanov & V. N. Skvortsov (Eds.), Lifelong learning: Theory and practice of continuous education: Proceedings of international cooperation (Vol. 2, pp. 84-88). Alter Ego.