References for Johannes De Groot

  1. D J Struik, P C Baayen, Biography in Dictionary of Scientific Biography (New York 1970-1990).
    http://www.encyclopedia.com/doc/1G2-2830905080.html

Articles:

  1. P C Baayen, The topological works of J de Groot, in Topological Structures - Proceedings of a Conference in honour of Johannes de Groot (1914-1972) (Amsterdam, 1974), 1-28.
  2. P C Baayen and M A Maurice, Johannes de Groot 1914-1972, General Topology and its Applications 3 (1973), 3-32.

December 1996

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