Gijs A. Verdoes Kleijn, Stefi A. Baum, P. Tim de Zeeuw, Chris P. O'Dea. Hubble Space Telescope Observations of Nearby Radio-Loud Early-Type Galaxies. „The Astronomical Journal”. 118 (6), s. 2592–2617, grudzień 1999. DOI: 10.1086/301135. arXiv:astro-ph/9909256. Bibcode: 1999AJ....118.2592V. (ang.).
Gijs A. Verdoes Kleijn, Stefi A. Baum, P. Tim de Zeeuw, Chris P. O'Dea. Hubble Space Telescope Observations of Nearby Radio-Loud Early-Type Galaxies. „The Astronomical Journal”. 118 (6), s. 2592–2617, grudzień 1999. DOI: 10.1086/301135. arXiv:astro-ph/9909256. Bibcode: 1999AJ....118.2592V. (ang.).
dx.doi.org
Seth B.S.B.NicholsonSeth B.S.B., AWARD OF THE BRUCE GOLD MEDAL TO DR. RUDOLPH MINKOWSKI, „Publications of the Astronomical Society of the Pacific”, 73 (431), 1961, DOI: 10.1086/127627(ang.).
harvard.edu
adsabs.harvard.edu
Gijs A. Verdoes Kleijn, Stefi A. Baum, P. Tim de Zeeuw, Chris P. O'Dea. Hubble Space Telescope Observations of Nearby Radio-Loud Early-Type Galaxies. „The Astronomical Journal”. 118 (6), s. 2592–2617, grudzień 1999. DOI: 10.1086/301135. arXiv:astro-ph/9909256. Bibcode: 1999AJ....118.2592V. (ang.).