1.		Usefulness of non-linear input–output models for economic impact analyses in tourism and recreation / Jeroen Klijs, Jack Peerlings, Wim Heijman Autor: Klijs, Jeroen Coautor: ; Peerlings, Jack Heijman, Wim COTA(S): RE-1822
2.		Criteria for comparing economic impact models of tourism / Jeroen Klijs [et al] Resp- Sec.: Klijs, Jeroen Heijman, Wim Maris, Diana Korteweg Bryon, Jeroen COTA(S): RE-1822