By McKellen, J.S.
By Comfort, Jeremy, Brieger, Nick
By Nick Brieger, Simon Sweeney
By David Riley
By Jenny Mawer
By Mark Ellis, etc., N O'Driscoll, A Pilbeam
By Mark Ellis, etc., A Pilbeam, N O'Driscoll
By Ian MacKenzie (Universite de Lausanne, Switzerland)
By Andrew Littlejohn