L: A Mathemagical Adventure
by members of the Association of Teachers of Mathematics co-ordinated by Richard Phillips, and including Derek Ball, Tony Corbett, David Rooke, Heather Scott, Alan Shaw, Margaret Stevens, Ruth Townsend, Jo Waddingham, Roger Waddingham, John Warwick, Alan Wigley, John Wood, and David Wooldridge.
1984
Ke Rulen los Petas
by Fabian Escalante, Javier Aragones, Miguel Angel Borreguero Quesada, Xavier Carrascosa
1989