Volume 18, Issue 1, January and February 2016, Pages 93-107
N. S. Baraiya, T. V. Ramana Rao, V. R. Thakkar
Volume 10, Issue 5, November and December 2008, Pages 471-479
A. A. Ramin, R. K. Prange, J. M. DeLong, P. A. Harrison