@article{mayer_1904, 
  title={Georges Espinas, Les finances de la communauté de Douai des origines au XV. siècle}, 
  volume={25}, 
  DOI={10.7767/zrgga.1904.25.1.351}, 
  publisher={Bohlau Verlag}, 
  author={Mayer}, 
  year={1904}, 
  month={Jan}
  }