?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aufirst=M.N.&rft.aulast=Daams&rft.au=Daams%2C+M.N.&rft.degree=Master&rft.title=Households'+willingness+to+pay+for+attractive+green+areas&rft.date=2011