Nilsson, K, Baines, C, Konijnendijk, CC, Baardsen, S, Balant, L, Bani, A, Bauer, N, Berget, B, Braastad, B, Buhagiar, J, Burls, A, Carrus, G, Classen, T, Costache, M, Elings, M, van Elsen, T, Galis, C
, Grahn, P, Hartig, T, Hassink, J, Hine, R, Holmbom, B, Kotrschal, K, Kovács, Z, Kyttä, M, Martuzzi, M, Moutsatsou, P, Neuberger, K, O’Brien, L, Ormerod, E, Rossi, L, Sangster, M, Sanesi, G, Seeland, K, Sempik, J, Scholl, S, Senni, S, Stigsdotter, U, Tenngart, C, de Vries, S & van Zon, R 2007,
Health and the Natural Outdoors. Final Report. COST European Cooperation in Science and Technology.