By Michael Field
By Sean Dineen
By Marc Hindry
By Jean-Claude Hausmann
By Mark J.D. Hamilton
By Alexandru Dimca
By Graham Everest, Thomas Ward
By Leonor Godinho, Jose Natario
By Marcos Dajczer, Ruy Tojeiro
By Jurgen Jost
By Nicolas Bergeron
By Ian M. Chiswell
By Michele Audin, Mihai Damian, Reinie Erne
By Siegfried Bosch
By A.N. Pressley
By Andrew Pressley
By Ioan M. James
By D.L. Johnson
By Shoshichi Kobayashi, Eriko Shinozaki Nagumo, Makiko Sumi Tanaka
By Duncan Marsh (D-Cubed Ltd, Cambridge UK)
By Duncan Marsh
By Masanori Morishita
By Willmore, T. J.
By Blackett, Donald W.
By Fleming, Walter, Varberg, Dale E.
By Mendelson, Bert
By Phillips, E. G.
By V. Balakrishnan
By David Jordan, Stephen A. Huggett, Roger Penrose (Mathematical Institute, Oxford)
By John Stillwell