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WikiPedia: Hồ Baikal http://users.ugent.be/~mdbatist/intas/morphometry.... http://www.britannica.com/ebi/article-207539 http://www.cnn.com/SPECIALS/2000/russia/story/trai... http://www.flickr.com/photos/tags/lakebaikal/ http://geology.com/records/deepest-lake.shtml http://www.globaltwitcher.com/artspec_information.... http://worldnews.nbcnews.com/_news/2013/11/30/2154... http://www.rbcnews.com/free/20060907165225.shtml http://www.russiatoday.com/Top_News/2009-03-13/Eco... http://www.sciencedirect.com/science/article/pii/S...