Drivers and Socioeconomic Impacts of Tourism Participation in Protected Areas Liu, Wei ; Vogt, Christine A. ; Luo, Junyan ; He, Guangming ; Frank, Kenneth A. ; Liu, Jianguo Abstract Publication: PLoS ONE Pub Date: April 2012 DOI: 10.1371/journal.pone.0035420 Bibcode: 2012PLoSO...735420L