In 1997 Boyer shared the Nobel Prize in Chemistry with John Walker and Jens C. Skou “for their elucidation of the enzymatic mechanism underlying the synthesis of adenosine triphosphate (ATP).” The Nobel Prize committee stated that "In 1974 Paul Boyer presented a theory explaining how ATP synthase works. The theory was substantiated in 1994 when John Walker used X-ray crystalography to determine the structure of ATP synthase."

Regarding Boyer's discovery, see Douglas Allchin, "To err and win a Nobel Prize: Paul Boyer, ATP synthase and the emergence of bioenergetics," Journal of the History of Biology, 35, 2002, 149-172.

Boyer published his 1974 paper, and others later on the subject, as single author papers. His most comprehensive review, issued the year of the Nobel award, was "ATP synthase -- A splendid molecular machine," Ann. Rev. of Biochem., 66, 1997, 717-749.

(Thanks to Juan Weiss for this reference and its interpretation.)