References for Jan de Witt

  1. J B Easton, Biography in Dictionary of Scientific Biography (New York 1970-1990).
    See THIS LINK.
  2. Biography in Encyclopaedia Britannica.


  3. N Japikse, Johan de Witt (Amsterdam, 1915).


  4. A W Grootendorst, The 'conic sections' according to Johan de Witt (Dutch), in Summer course 1995 : conic sections and quadratic forms (Amsterdam, 1995), 15-55.