References for Joseph Ritt

Articles:

  1. J W Dauben, Joseph Fels Ritt, American National Biography 18 (Oxford, 1999), 550-551.
  2. E R Lorch, Obituary : Joseph Fels Ritt, Bull. Amer. Math. Soc. 57 (1951), 307-318.

August 2005

MacTutor History of Mathematics
[http://www-history.mcs.st-andrews.ac.uk/References/Ritt.html]