Dziemski, W. 2021. The Sources of impedimentum ligaminis (can.1085 § 1 of the 1983 Code of Canon Law) in the First Recension of Gratian’s Decretum. Biuletyn Stowarzyszenia Kanonistów Polskich. 31, 34 (Jun. 2021), 33–49. DOI:https://doi.org/10.32077/skp.2021.34.1-2.