000 00306nam a2200121Ia 4500
008 220721s9999 xx 000 0 und d
041 _aeng
082 _a595.3(54)
245 _a25th Proc. of the Indian science congress Calcutta
260 _aCalcutta
_bP.Knight
300 _a309P.
999 _c75715
_d75715