Astrophysik. II : Sternaufbau = Astrophysics. II : Stellar Structure / Marshal H.
Wrubel, H. C. Arp, G. R. Burbidge [et al.], 1958
Information trouvée : Mount Wilson and Palomar Observatories, Pasadena/California, USA
Internet, https://www.wikidata.org/wiki/Q453729, 2022-03-28
Information trouvée : Halton Arp (1927-03-21/2013-12-28), astronome américain
LCNA (CD OCLC), 1993-12. BLNA, 1993-08
Quasars, redshifts, and controversies / Halton Arp, 1987