Volume 6, Issue 4, October 2012, Pages 925-932
K.F. Brisolara; R.S. Reimers; R.E. Whitworth; M.J. Hutcheson
Volume 4, Issue 4, November 2010, Pages 855-860
H. Belarbi; M.H. Al-Malack
Volume 2, Issue 3, July 2008, Pages 297-306