@article{article, title = {{The simony crisis of the eleventh century and the 鈥楲etter of Guido鈥檥}, publisher = {{Cambridge University Press (CUP)}}, url = {{https://eprints.whiterose.ac.uk/169771/ }}, year = {{2021}}, month = {{9}}, author = {{West C}}, doi = {{10.1017/S0022046921000063}}, volume = {{73}}, journal = {{Journal of Ecclesiastical History}}, issue = {{2}}, pages = {{229-253}}, note = {{Accessed on 2025/05/22}}}