@article{Woltjer_1997, title={B.J. Kaplan, Calvinists and libertines. Confession and community in Utrecht 1578-1620}, volume={112}, url={https://bmgn-lchr.nl/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-105216}, DOI={10.18352/bmgn-lchr.4528}, number={3}, journal={BMGN - Low Countries Historical Review}, author={Woltjer, J.J.}, year={1997}, month={Jan.}, pages={407–409} }