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2. An interactive information kiosk for the Adirondack Park visitor interpretive center;Alpert,1998
3. Is tourism damaging ecosystems in the Andes? Current knowledge and an agenda for future research;Barros;AMBIO,2015
4. GPS tracking of visitor use: factors influencing visitor spatial behavior on a complex trail system;Beeco;J. Park Recreat. Adm.,2014
5. Off the beaten track: messages as a means of reducing social trail use at St. Lawrence Islands National Park;Bradford;J. Park Recreat. Adm.,2007