RT Article T1 Reflections on the system of canon law JF The jurist VO 42 IS 2 SP 239 OP 276 A1 Huizing, Petrus 1911-1995 LA English PB School of Canon Law, The Catholic University of America YR 1982 UL https://www.ixtheo.de/Record/1644001772 K1 Rechtssystematik K1 Kodexreform K1 Grundlegung des Kirchenrechts