@article{Ritsema_van_Eck_2019,
title={Graffiti in medieval and early modern religious spaces: illicit or accepted practice? The case of the sacro monte at Varallo},
url={http://dx.doi.org/10.34055/osf.io/dwzak},
DOI={10.34055/osf.io/dwzak},
publisher={Center for Open Science},
author={Ritsema van Eck,
Marianne Petra},
year={2019},
month=sep }