1: A-D - Fahlbusch, Erwin. (OLS)http://ftis/name/52010; Pelikan, Jaroslav. (OLS)http://ftis/name/61250; Barrett, David B. (OLS)http://ftis/name/52082; Bromiley, Geoffrey W. (OLS)http://ftis/name/65500 (Encyclopedia of Christianity, 1999)

9: 2011-2015. - Conferenza Episcopale Italiana. (OLS)http://ftis/name/52035 (Enchiridion della Conferenza Episcopale Italiana, 2016)
In custodia.