found: L'Alto Medioevo, 1968.
found: Il Mosaico, 1988:title page (a cura di Carlo Bertelli) jacket (born 1930 in Rome)
found: Un gentile città moderna, 1988:title page (C. Bertelli) back cover (Carlo Bertelli)
found: Italian Wikipedia, viewed April 3, 2018(Carlo Bertelli; born in Rome in 1930; Italian art historian; specialist in Medieval art; studied in Rome and at the Warburg Institute in London; held positions in a number of national cultural agencies in Italy; taught at the Università della Svizzera italiana in Lugano)