found: Instruction dels rictors, vicaris et autres ayants charge d'armas aus diocesis de Rodes & de Vabres, 1982:title page (Mestre Joan Jarson, chancelier de Paris)
found: Burger, C. Aedificatio, fructus, utilitas, 1986:title page (Johannes Gerson)
found: Teologia mistica e teologia scolastica, 1994:title page (Giovanni Gerson)
found: Malleus maleficarum, maleficas et earum haeresin framea conterens, 1620v.2, pt. 1, t.p. verso (Ioannis de Gersoniolim) v.2, pt. 2, t.p. verso (Ioan. Gersonii)
found: Encyc. Brit., 11th ed.(Gerson, John, 1363-1429, otherwise Jean Charlier de Gerson)
found: Eximii ... Doctoris Iohannis de Gersonno ... Tractatus de pollutione nocturna ... ca. 1490.
found: BM(hdg.: Charlier de Gerson, Jean; refs.: Gerson, Jean Charlier de; Gerson, Johannes; Gerson, John; Gerson, Joannes de; Gersone, Giovanni; Gersonius, Joannes Charlerius; Gerson, Giovanni)
found: New Catholic encyclopedia. Second edition, 2003, viewed online on March 13, 2017:volume 6, page 189 (Jean Gerson; pronouns: he/him; chancellor of University of Paris; born in the village of Gerson, near Rethel, France, on December 14, 1363; died in Lyons, July 12,1429; studied theology at College of Navarre in Paris; theologian and poet) volume 6 page 190 (pedagogue; did not write Imitation of Jesus Christ; author of many Latin treatises, later writings often in Middle French)
found: Giovanni Gersen, l'autore della Imitazione di Cristo, 1874:pages 3-4 (Giovanni Gersen, an Italian Benedictine who was abbot in Vercelli from 1220-1240, is not the same person as Jean Gerson, chancellor of the University of Paris)
