E. den Hartog, De oudste kerken van Holland. Van kerstening tot 1300. BMGN - Low Countries Historical Review, [S. l.], v. 118, n. 4, p. 577–579, 2003. DOI: 10.18352/bmgn-lchr.5950. Disponível em: https://ojstest.minions.amsterdam/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-106825.. Acesso em: 23 nov. 2024.