Riising, Anne. “Heresies of the High Middle Ages. Selected Sources Translated and Annotated by Walter L. Wakefield and Austin P. Evans. Records of Civilization: Sources and Studies. New York and London, Columbia University Press, 1969. Xiv + 865 S. 10 £ 2 Sh”. Historisk Tidsskrift, bd. 12, januar 1971, https://tidsskrift.dk/historisktidsskrift/article/view/51182.