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The GRAVITY Collaboration, R. Abuter, A. Amorim, M. Bauböck, J. P. Berger: A geometric distance measurement to the Galactic center black hole with 0.3% uncertainty. In: Astronomy & Astrophysics. Band625, Mai 2019, ISSN0004-6361, S.L10, doi:10.1051/0004-6361/201935656 (aanda.org [abgerufen am 22. November 2019]).
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F. Eisenhauer et al.: SINFONI in the Galactic Center: Young Stars and Infrared Flares in the Central Light-Month. In: The Astrophysical Journal. 628. Jahrgang, Nr.1, 20. Juli 2005, S.246–259, doi:10.1086/430667, arxiv:astro-ph/0502129, bibcode:2005ApJ...628..246E (englisch).
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The GRAVITY Collaboration, R. Abuter, A. Amorim, M. Bauböck, J. P. Berger: A geometric distance measurement to the Galactic center black hole with 0.3% uncertainty. In: Astronomy & Astrophysics. Band625, Mai 2019, ISSN0004-6361, S.L10, doi:10.1051/0004-6361/201935656 (aanda.org [abgerufen am 22. November 2019]).
Shogo Nishiyama, Tomohiro Kara, Brian Thorsbro, Hiromi Saida, Yohsuke Takamori, Masaaki Takahashi, Takayuki Ohgami, Kohei Ichikawa, Rainer Schödel: Origin of an orbiting star around the galactic supermassive black hole. In: Proceedings of the Japan Academy, Series B, Print ISSN0386-2208; doi:10.2183/pjab.100.007, Online ISSN1349-2896
