ef='//www.scirp.org/xml/81289.xml' target='_blank' style='font-weight:bold;text-decoration:none;border:1px solid #d5d5d5;padding:1px 3px; height:17px; line-height:17px; display:inline-block;' onclick='SetNum(81289);'>XML   Pub. Date: December 25, 2017

DOI: 10.4236/sgre.2017.812025   709 Downloads  1,694 Views  Citations

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