Rob Timmer (Timmer, Rob)

German

• 
  Kreative Sportinformatik: Der Internationale Jubilaums-Kongress 1975 in Graz
  by Josef Recla, International Association for Sports Information, Graz, Rob Timmer, International Bureau of Documentation and Information
  Hardcover, Verlag Karl Hofmann, ISBN 3778038710 (3-7780-3871-0)

English

• 
  International Directory of Sports Organizations under the Auspices of the International Association for Sports Information (IASI)
  by Josef Recla, International Association for Sports Information, Rob Timmer
  Hardcover, De Vrieseborch, ISBN 9060761979 (90-6076-197-9)