Farrell, Elaine Cristine dos Santos Pereira. 2015. «Recensão: BHREATHNACH, Edel – Ireland in the Medieval World AD 400-1000: Landscape, Kingship and Religion. Dublin: Four Courts Press, 2014. ISBN: 978-1-84682-342-8.». Medievalista 1 (17). https://doi.org/10.4000/medievalista.1543.