books.google.comhttps://books.google.com/books/about/La_France_et_le_grand_schisme_d_Occident.html?hl=fr&id=UOJLAAAAMAAJ&q=No%C3%ABl+Valois+grand+schisme+occident&utm_source=gb-gplus-shareLa France et le grand schisme d'Occident: Recours au Concile général