[题目]Optimization of tourism impacts within protected areas by means of genetic algorithms[作者]Gilberto Paroloa, , Alessandro Ferrarinia,  and Graziano Rossi
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http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VBS-4VPJTCS-2&_user=9656037&_coverDate=04%2F24%2F2009&_alid=1574543503&_rdoc=2&_fmt=high&_orig=search&_origin=search&_zone=rslt_list_item&_cdi=5934&_sort=r&_st=0&_docanchor=&_ct=12&_acct=C000050221&_version=1&_urlVersion=0&_userid=9656037&md5=e3f353f475c94aba10c36485f4e5fc09&searchtype=a