R. Abuter, A. Amorim, N. Anugu, M. Bauböck, M. Benisty: Detection of the gravitational redshift in the orbit of the star S2 near the Galactic centre massive black hole. In: Astronomy & Astrophysics. Band615, Juli 2018, ISSN0004-6361, S.L15, doi:10.1051/0004-6361/201833718 (aanda.org [abgerufen am 29. Juli 2018]).
Gravity Collaboration, R. Abuter u. a.: Detection of the gravitational redshift in the orbit of the star S2 near the Galactic centre massive black hole. In: Astronomy & Astrophysics, Band 615, 2018, L 15, Abstract
R. Abuter, A. Amorim, N. Anugu, M. Bauböck, M. Benisty: Detection of the gravitational redshift in the orbit of the star S2 near the Galactic centre massive black hole. In: Astronomy & Astrophysics. Band615, Juli 2018, ISSN0004-6361, S.L15, doi:10.1051/0004-6361/201833718 (aanda.org [abgerufen am 29. Juli 2018]).
Nature 419, 694–696 (17. Oktober 2002) | doi:10.1038/nature01121; A star in a 15.2-year orbit around the supermassive black hole at the centre of the Milky Way
R. Abuter, A. Amorim, N. Anugu, M. Bauböck, M. Benisty: Detection of the gravitational redshift in the orbit of the star S2 near the Galactic centre massive black hole. In: Astronomy & Astrophysics. Band615, Juli 2018, ISSN0004-6361, S.L15, doi:10.1051/0004-6361/201833718 (aanda.org [abgerufen am 29. Juli 2018]).