Volume 17, Issue 3, May and June 2015, Pages 649-662
T. V. Arun Kumar, D. V. K. Samuel, S. K. Jha, J. P. Sinha
Volume 15, Issue 4, July and August 2013, Pages 723-736
M. Kafi, M. H. Shariat Jafari, A. Moayedi