McMurdo LTER Publications
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The distribution and relative abundance of ammonium-oxidizing bacteria in lakes of the McMurdo Dry Valleys, Antarctica. Hydrobiologia. 1999;401:113-130. doi:LTER.
. Geomicrobiology of sub-glacial ice above Vostok Station. Science. 1999;286(5447):2141-2144. doi:10.1126/science.286.5447.2141.