000			00255nam a2200109Ia 4500
008			211004s9999 xx 000 0 und d
245			_a"JOURNAL OF MINES METALS AND FUELS "
260			_c2016-2017
500			_a"12,1,2"
500			_a"64,65"
942			_cBV
999			_c21584 _d21584