- BIELER L., The Irish Penitentials, Dublin 1963, 137-149 (Testo "A"), 151-160 (Testo "P")..
- MCNEILL J.T. - GAMER H.M., Medieval handbooks of penance: a translation of the principal “libri poenitentiales” and selections from related documents, New York 1938, 127-137.