”The Nobel Prize in Physics 1974” (på amerikansk engelska). NobelPrize.org. https://www.nobelprize.org/prizes/physics/1974/summary/. Läst 30 september 2018. ”for their pioneering research in radio astrophysics: Ryle for his observations and inventions, in particular of the aperture synthesis technique, and Hewish for his decisive role in the discovery of pulsars.”
