1. A brief account has appeared previously: Sommer, T.J. (1999) ‘Bahramdipity’ and Scientific Research. The Scientist 13(3) (February 1): 13. http://www.the-scientist.com/yr1999/feb/opin_990201.html
2. Stachel, J. J., Ed. (1987) The Collection of Papers of Albert Einstein, Vol. 1. The Early Years, Princeton University Press, Princeton: Document No. 115.
3. Roberts, R. M. (1989) Serendipity; Accidental Discoveries in Science. John Wiley & Sons, New York.
4. Halacy, Jr., D. S. (1967) Science and Serendipity. Macrae Smith, Philadelphia.
5. Austin, J. H. (1978) Chase, Chance and Creativity; The Lucky Art of Novelty. Columbia University Press, New York.