Volume 26, Issue 7, July 2013, Pages 729-742
G. C. Sharma; Priyanka Agarwal; Atar Singh
Volume 22, Issue 3, October 2009, Pages 307-315
G.C. Sharma; M. Jain; Atar Singh
Volume 20, Issue 1, April 2007, Pages 87-95
Atar Singh; G. C. Sharma; Madhu Jain