^Steinn Sigurdsson, Harvey B. Richer, Brad M. Hansen, Ingrid H. Stairs, Stephen E. Thorsett (July 2003). "A Young White Dwarf Companion to Pulsar B1620-26: Evidence for Early Planet Formation". Science301 (5630): 193–196. arXiv:astro-ph/0307339. Bibcode:2003Sci...301..193S. doi:10.1126/science.1086326.
^David O. Jones, Steven A. Rodney, Adam G. Riess, Bahram Mobasher, Tomas Dahlen, Curtis McCully, Teddy F. Frederiksen, Stefano Casertano, Jens Hjorth, Charles R. Keeton, Anton Koekemoer, Louis-Gregory Strolger, Tommy G. Wiklind, Peter Challis, Or Graur, Brian Hayden, Brandon Patel, Benjamin J. Weiner, Alexei V. Filippenko, Peter Garnavich, Saurabh W. Jha, Robert P. Kirshner, Henry C. Ferguson, Norman A. Grogin, Dale Kocevski (2 April 2013). "The Discovery of the Most Distant Known Type Ia Supernova at Redshift 1.914". The Astrophysical Journal (May 2013) 768 (2). arXiv:1304.0768. Bibcode:2013ApJ...768..166J. doi:10.1088/0004-637X/768/2/166. 166.
^K. Werner; T. Rauch (29 September 2015). "Analysis of HST/COS spectra of the bare C–O stellar core H1504+65 and a high-velocity twin in the Galactic halo". Astronomy and Astrophysics (December 2015) 584. arXiv:1509.08942. Bibcode:2015A&A...584A..19W. doi:10.1051/0004-6361/201527261. A19.
^ abcdefDavid Taylor (2012). "White Dwarf Stars Near The Earth"(PDF). The Life and Death of Stars. Weinberg College of Arts and Sciences - Northwestern University.