1.		Research note: Economic values in the Swedish nature-based recreation sector - a synthesis / Peter Fredman [et al.] Resp- Sec.: Fredman, Peter Boman, Mattias Lundmark, Linda Mattsson, Leif
2.		Green business model innovation in the tourism and experience economy : Cases from Austria, Portugal, Denmark, Finland, México, Norway, Sweden, Iceland, Russia and South Korea / Petra Nilsson-Andersen, Jorn Bang Andersen; Nordic Innovation Data Publicação: 2012 Col.autor: Nordic Innovation