By Charles Plumpton, E. Shipton
By School Mathematics Project
By Paul Metcalf
By Christopher Green
By John Berry
By Graham E. Berry, A.J.P. Watkins, E. Graham
By Greg N. Frederickson (Purdue University, Indiana)
By Brian Bolt
By Theoni Pappas
By Judita Cofman (Professor, Mathematics Institute, Professor, University of Erlangen)
By Alexander Prestel, Charles N. Delzell
By Catriona Maclean, Daniel Perrin
By Christine Laurent-Thiebaut
By Anton Deitmar
By Francoise Dal'Bo
By Agusti Reventos Tarrida
By Masanori Morishita
By Jean-Baptiste Hiriart-Urruty
By Franco Vivaldi
By Sean Dineen
By D.L. Johnson
By Roozbeh Hazrat
By Ioan M. James
By Claudio G. Canuto, Anita Tabacco
By Rene Schoof
By Mariana Haragus, Gerard Iooss
By James W. Anderson
By T. S. Blyth, E. F. Robertson
By Daniel Grieser