@inbook {2017, title = {Clerical Exemption in Canon Law from Gratian to the Decretals}, booktitle = {Religious Exemption in Pre-Modern Eurasia, c. 300-1300 CE}, series = {medieval worlds. comparative \& interdisciplinary studies}, volume = {6}, year = {2017}, pages = {78-100}, publisher = {Austrian Academy of Sciences Press}, organization = {Austrian Academy of Sciences Press}, address = {Wien}, isbn = {978-3-7001-8243-6}, doi = {10.1553/medievalworlds_no6_2017s78}, author = {Duggan, Anne J.}, editor = {West, Charles} }