Francesco Petrarca, citizen of the world. Proceedings of World Petrarch Congres, Washington D.C., April 6-13, 1974 ed. by A.S. Bernardo.
Constable, G., Petrarch and Monasticism: 53-99 p. 71: Denys de Borgo S. Sepolcro, Barthélemy d'Urbino, Louis Marsili, Jean Coci, Jacques Bussolaro, Bonaventure de Padova, Pierre de Castelleto; Murphy, F.X., Petrarch and the christian philosophy: 223-47 Denys de Borgo S. Sepolcro: 225-8, 231, 239-40; Louis Marsili: 233 et aussi: p. 188-89; les autres: p. 225.