↑Lemaître, G. "Un Univers homogène de masse constante et de rayon croissant rendant compte de la vitesse radiale des nébuleuses extra-galactiques". Annales de la Société Scientifique de Bruxelles (French). 47. April 1927: 49. Bibcode:1927ASSB...47...49L.
↑"name change for Hubble Law". Nature. 563 (7729): 10–11. 31 October 2018. doi:10.1038/d41586-018-07180-9. PMID30382217. The International Astronomical Union recommends that the law should now be known as the Hubble–Lemaître law, to pay tribute to the Belgian priest and astronomer Georges Lemaître, who derived the speed–distance relationship two years earlier than did US astronomer Edwin Hubble.
↑van den Bergh, Sidney. "The Curious Case of Lemaitre's Equation No. 24". Journal of the Royal Astronomical Society of Canada. 105 (4). 6 June 2011: 151. arXiv:1106.1195. Bibcode:2011JRASC.105..151V.