Main authors of the study were some well-known Roman theologians and university professors, including the Dominican priest Guérard des Lauriers, who worked under the direction of Archbishop Marcel Lefebvre.
Shortly afterwards, when Pope Paul VI had spoken at the general audiences of 19 and 26 November 1969 of the changes in the Mass, Cardinal Ottaviani declared:
Jean Madiran, a critic of Vatican II, and editor of the French journal Itinéraires, claimed that this letter was fraudulently presented to the elderly and already blind cardinal for his signature by his secretary, Monsignor (and future Cardinal) Gilberto Agustoni, and that Agustoni resigned shortly afterwards. Monsignor Agustoni resigned as Cardinal Ottaviani's secretary in 1970 to join the Ecclesiastical Magistrature as Prelate Auditor of the Tribunal of the Roman Rota , and there is no evidence to suggest his departure was anything more than a routine change of assignment. Furthermore, Jean Madiran admits that he was not in the room to see this alleged deception of Cardinal Ottaviani.
Cardinal Ottaviani at least remained critical of liturgical deviations, as has been the Holy See, but was severely weakened physically after 1970 due to blindness and vascular complications. He died on 3 August 1979.