Roelofs, P. 2014. Gold for Houkje Gerrits Bouma: The Women’s Skating Competition on the Stadsgracht in Leeuwarden on 21 January 1809, Painted by Nicolaas Baur. The Rijksmuseum Bulletin. 62, 2 (Jun. 2014), 152–187. DOI:https://doi.org/10.52476/trb.9845.