Dutta, S. [P:(DE-HGF)0] ; Mathews, R.P. [P:(DE-HGF)0] ; Singh, B.D. [P:(DE-HGF)0] ; Tripathi, S.M. [P:(DE-HGF)0] ; Saraswati, P.K. [P:(DE-HGF)0] ; Banerjee, S. [P:(DE-HGF)0] ; Mann, U. [P:(DE-Juel1)VDB1006]