Persi Diaconis, R.L. Graham e William M. Kantor

The Mathematics of Perfect Shuffle

Advances in Applied Mathematics, N. 4, Academic Press, 1983, pp. 175-196.

James Randi

The Project Alpha Experiment

The Skeptical Inquirer, Amherst 1983.

Harry Collins

Magicians in the laboratory: a new role to play

New Scientist, 30 june 1983.