000			00331nam a2200133Ia 4500
001			147326
008			170722s9999 xx 000 0 und d
100			_aNirmala Kumari Amma, K.
245			_aSome studies on ideals and filters in groupoids /
260			_c1991.
653			_aMathematics
653			_aPhd Thesis
942			_cTH
999			_c164017 _d164017