This position is endorsed by the and the Orthodox Roman Catholic Movement.Istituto Mater Boni Consilii (IMBC). "Who we are". Retrieved 29 August 2021.Most Rev. Donald Sanborn. "The material Papacy". Retrieved 29 August 2021.Most Rev. Donald Sanborn. "De Papatu Materiali". "Pars Prima" and "Pars Secunda". Retrieved 29 August 2021.
This position is endorsed by the and the Orthodox Roman Catholic MovementIstituto Mater Boni Consilii (IMBC) "Who we are" Retrieved 29 August 2021Most Rev Donald Sanborn "The material Papacy" Retrieved 29 August 2021Most Rev Donald Sanborn "De Papatu Materiali" "Pars Prima" and "Pars Secunda" Retrieved 29 August 2021