Hospinian - Historia do monacato e Historia dos sacramentarios
https://books.google.com.br/books?id=N2pPAAAAcAAJ&printsec=frontcover&hl=pt-BR&source=gbs_ge_summary_r&cad=0#v=onepage&q&f=false Hospinian - Historia dos monges https://books.google.com.br/books?id=vtc8AAAAcAAJ&printsec=frontcover&hl=pt-BR&source=gbs_ge_summary_r&cad=0#v=onepage&q&f=false Hospinian - Historia dos sacramentarios