Peter Kolosimo e Caterina Kolosimo

Siamo tutti telepatici?

Albo Bliz, N. 38, 23 september 1981, pp. 26-29.

André Nadal

Les calculateurs prodiges

Mémoires de l'Académie de Nîmes, Vol. 61, Académie de Nîmes, Nîmes 1983, pp. 127-154.

Harry Collins

Magicians in the laboratory: a new role to play

New Scientist, 30 june 1983.