found: Index scriptorum Latinorum Medi Aevi Hispanorum, 1958-
found: Códices visigóticos en la monarquía leonesa, 1983:titel page (Manuel C. Díaz y Díaz)
found: Bivium, 1983:title page (Manuel Cecilio Díaz y Díaz) page 15 (born August 14, 1924, in Mugardos; professor)
found: Millares Carlo, A. Corpus de códices visigóticos, 1999:volume 1, title page (M.C. Díaz y Díaz)
found: Spanish Wikipedia, viewed May 23, 2019(Manuel Díaz y Díaz; Manuel Cecilio Díaz y Díaz; born August 14, 1924, in Mugardos (La Coruña); died February 4, 2008, in Santiago de Compostela; Spanish philologist and medievalist; obtained his doctorate in 1949; taught at the Universidad de Santiago de Compostela beginning in 1968)