@inbook{OCallaghan+2016+163+180,
url = {https://doi.org/10.9783/9781512805451-016},
title = {11. The African Crusade},
booktitle = {The Learned King},
booktitle = {The Reign of Alfonso X of Castile},
author = {Joseph F. O'Callaghan},
publisher = {University of Pennsylvania Press},
address = {Philadelphia},
pages = {163--180},
doi = {doi:10.9783/9781512805451-016},
isbn = {9781512805451},
year = {2016},
lastchecked = {2026-04-29}
}