Volume 37, Issue 3.1, September and October 2013, Pages 365-378
N. Rehman; M. Shabir
Volume 37, Issue 2, May and June 2013, Pages 117-131
M. Shabir; M. Ali
Volume 36, Issue 3.1, September and October 2012, Pages 395-410
M. Shabir; N. Rehman
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