Correction
NOV 01, 2002
DOI: 10.1063/1.4796598
October 2002, page 76 —The Web address at the end of the letter by Daniel M. Boye, Shila Garg, and Gerald A. Goldin should be http://www.phy.davidson.edu/NSFGRF.htm .
© 2002. American Institute of Physics
