@inbook{Page+2013+93+111,
url = {https://doi.org/10.1515/9780271060965-009},
title = {5 The liber de essentia spirituum: magic, revelation, and fellowship with spirits},
booktitle = {Magic in the Cloister},
booktitle = {Pious Motives, Illicit Interests, and Occult Approaches to the Medieval Universe},
author = {Sophie Page},
publisher = {Penn State University Press},
address = {University Park, USA},
pages = {93--111},
doi = {doi:10.1515/9780271060965-009},
isbn = {9780271060965},
year = {2013},
lastchecked = {2026-05-04}
}