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Stephenson 2-18 Stephenson 2 Stephenson, Wisconsin Stephensoniella brevipedunculata Stephensoniella (Enchytraeidae) Stephensoniella Stephen Sondheim Stephenseniellus serraticornis Stephenseniellus palliolatipesTài liệu tham khảo
WikiPedia: Stephenson 2-18 http://adsabs.harvard.edu/abs/2003yCat.2246....0C http://adsabs.harvard.edu/abs/2018A&A...616A...1G http://simbad.u-strasbg.fr/simbad/sim-id?Ident=Cl*... http://vizier.u-strasbg.fr/viz-bin/VizieR-S?Gaia%2... //arxiv.org/abs/1804.09365 http://www.wikisky.org/?ra=18.650658583333&de=5.91...