Retrieved January 19, 2008, from http://www.ascusc.org/jcmc/vo13/issue4/wiesenfeld.html* Stone, R. W. & Henry, J. W. (1998).
Retrieved January 19, 2008, from http://www.ascusc.org/jcmc/vo13/issue4/wiesenfeld.html* Stone, R. W. & Henry, J. W. (1998).