Armington, John C.; Thiede, Frederick C. American Journal of Physiology. Legacy Content, 186, 2, 8-1956, pàg. 258–262. DOI: 10.1152/ajplegacy.1956.186.2.258. PMID: 13362518 [Consulta: free].
Armington, John C.; Thiede, Frederick C. American Journal of Physiology. Legacy Content, 186, 2, 8-1956, pàg. 258–262. DOI: 10.1152/ajplegacy.1956.186.2.258. PMID: 13362518 [Consulta: free].