“Robert GEISINGER, On the requirement of sufficient maturity for candidates to the presbyterate (c. 1031 §1), with a consideration of canonical maturity and matrimonial jurisprudence (1989-1990), Editrice Pontificia Università Gregoriana, Roma 1999, 273 pp”., Ius Canonicum, vol. 41, no. 82, pp. 778–780, Jan. 2018, doi: 10.15581/016.41.15880.