By Finch, Jane, van Breugel, Cees, Kats, Karel, et al
By Röbbe Wünschiers
By Reader's Digest Association, Reader's Digest
By O'Byrne, Sean, Sean O'Byrne
By Sutherland, Mrs Diane, Jon, Heathcote, Trevor, Jennings, Sue, Hawkes, Michael, Joshi, Ashok
By Clarke, Alan
By Veronica White
By Sharon Yull, Alan Jarvis, Jenny Lawson
By Reeves, Bob
By Gatenby, Jim
By M.P. Allen, D.J. Tildesley
By Cohen, Daniel I. A.
By Maybury, Rick
By Fry, T. F.
By Bradley, Ray
By Langfield, Ms Sylvia, Heathcote, Pat M.
By Sutton, Hankin
By Giannasi, F., Low, R.
By Dean, Neville
By Haggarty, Rod
By New Scientist
By Parker, Maurice
By Hillis, Daniel
By Heathcote, P M
By Roderick, Tim, Rushbrook, Geoff
By Robson, Susan, Susan Robson
By McBride, P K
By Pountney, Maxine
By Walker