"Archbishop Lefebvre gathered together a group of 12 theologians who wrote under his direction, A Short Critical Study of the Novus Ordo Missae often called the Ottaviani Intervention." A Short History of the SSPXArchived 24 September 2015 at the Wayback Machine
"Archbishop Lefebvre gathered together a group of 12 theologians who wrote under his direction, A Short Critical Study of the Novus Ordo Missae often called the Ottaviani Intervention." A Short History of the SSPXArchived 24 September 2015 at the Wayback Machine