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WikiPedia: Hồ_Sevan http://armstat.am/file/doc/99481713.pdf http://www.armstat.am/file/article/marz_03_1.pdf http://news.am/eng/news/95684.html http://www.parliament.am/legislation.php?sel=show&... http://www.armenianow.com/society/environment/5113... http://aleph.nkp.cz/F/?func=find-c&local_base=aut&... http://www.perseus.tufts.edu/hopper/text?doc=Perse... http://www.eki.ee/knab/ex/ex_ka.htm http://enpi-seis.pbe.eea.europa.eu/east/armenia/pi... http://www.nplg.gov.ge/gwdict/index.php?a=term&d=1...