Tài liệu tham khảo WikiPedia: NGC_6712 http://www.univie.ac.at/webda/cgi-bin/ocl_page.cgi... http://simbad.u-strasbg.fr/Simbad http://simbad.u-strasbg.fr/simbad/sim-id?Ident=NGC... //arxiv.org/abs/1001.4289 //arxiv.org/abs/1004.2255 //arxiv.org/abs/1108.4402 //doi.org/10.1088%2F0004-637X%2F742%2F1%2F51 //doi.org/10.1111%2Fj.1365-2966.2010.16373.x //doi.org/10.1111%2Fj.1365-2966.2010.16813.x http://spider.seds.org/ngc/revngcic.cgi?NGC6712
