http://www.etnews.com/news/contents/contents/2891544_1487.html

http://biz.chosun.com/site/data/html_dir/2013/12/26/2013122601932.html

http://www.mt.co.kr/view/mtview.php?type=1&no=2013121814374453949&outlink=1

http://news.hankooki.com/lpage/health/201312/h2013122621103184500.htm

http://joongang.joins.com/article/aid/2013/12/27/13084373.html?cloc=olink|article|default

http://www.zdnet.co.kr/news/news_view.asp?artice_id=20131226083543&type=xml

http://economy.hankooki.com/lpage/stock/201312/e2013122609255992480.htm

http://khnews.kheraldm.com/view.php?ud=20131226000417&md=20131227003256_AT

http://www.wikitree.co.kr/main/news_view.php?id=152857

http://news.inews24.com/php/news_view.php?g_serial=793576&g_menu=020310&rrf=nv