Nakano, Tadao; Nishijima, Kazuhiko (November 1953). "Charge Independence for V-particles". Progress of Theoretical Physics10 (5): 581–582. doi:10.1143/PTP.10.581. Bibcode: 1953PThPh..10..581N. "The 'baryon' is the collective name for the members of the nucleon family. This name is due to Pais. See ref. (6).".
J. Michael Shull (2012). "The Baryon Census in a Multiphase Intergalactic Medium: 30% of the Baryons May Still be Missing". 759. The Astrophysical Journal. doi:10.1088/0004-637X/759/1/23.
Nakano, Tadao; Nishijima, Kazuhiko (November 1953). "Charge Independence for V-particles". Progress of Theoretical Physics10 (5): 581–582. doi:10.1143/PTP.10.581. Bibcode: 1953PThPh..10..581N. "The 'baryon' is the collective name for the members of the nucleon family. This name is due to Pais. See ref. (6).".