id	keyword
ertr-597	+ +
ertr-597	ecotourism
ertr-597	research
ertr-597	russian
ertr-597	development
ertr-597	international
ertr-597	journals
ertr-597	management
ertr-597	tourism research
ertr-597	review
ertr-597	environmental
ertr-597	resources
ertr-597	articles
ertr-597	vol
ertr-597	ertr
ertr-597	http://ertr.tamu.edu/