H. J. Ryser (Dutch Wikipedia)

Analysis of information sources in references of the Wikipedia article "H. J. Ryser" in Dutch language version.

refsWebsite

Global rank Dutch rank

3^rd place

43^rd place

1^st place

887^th place

1,194^th place

books.google.com

Bolian Liu, Hong-Jian Lai (2000). Matrices in combinatorics and graph theory By , x. Springer, xi. ISBN 978-0-7923-6469-6. Geraadpleegd op 7 January 2011 "...Herbert John Ryser, who can rightfully be considered the father of Combinatorial Matrix Theory..."
Lagarias, Jeffrey C. (2010). The ultimate challenge: the 3x+1 problem. American Mathematical Soc., 228–. ISBN 978-0-8218-4940-8. Geraadpleegd op 27 June 2011.
Richard A. Brualdi (1988). Papers to Appear in The Herbert J. Ryser Memorial Issue, Part Ii. Journal of Combinatorial Theory Series A 47 (2). Geraadpleegd op 7 January 2011.

"Emeritus Professors – 1985" (PDF), September 1985, p. 30. Geraadpleegd op 18 juli 2010.

Ryser's biography at the Ohio State University website
California Tech, "Mathematics Awards", May 17, 1991, page 1. (Scan of that page on-line via on-line archives at the newspaper.)