@article{Berg_1999, title={H.J.L. Vonhoff, Liberalen onder één dak. VVD: 50 jaar liberale vereniging}, volume={114}, url={https://bmgn-lchr.nl/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-105884}, DOI={10.18352/bmgn-lchr.5136}, number={4}, journal={BMGN - Low Countries Historical Review}, author={Berg, R. van den}, year={1999}, month={Jan.}, pages={644–646} }