Sanctorum Zenonis et Optati,prioris Veronae, alterius Milevi Episcoporum, opera omnia - Zeno, santo. (OLS)http://ftis/name/70324; Optatus : Milevitanus, santo. (OLS)http://ftis/name/53616; Migne, Jacques-Paul. (OLS)http://ftis/name/52039 (Typographi Brepols editores pontificii,)