References for Ernst Jacobsthal
Articles:
S Selberg, Ernst Jacobsthal. (Norwegian),
Norske Vid. Selsk. Forh.
(
Trondheim
)
38
(1965), 70-73.
July 2008
MacTutor History of Mathematics
[http://www-history.mcs.st-andrews.ac.uk/References/Jacobsthal.html]