000 00252nam a2200109Ia 4500
008 211004s9999 xx 000 0 und d
245 _aJOURNAL OF MINES METALS AND FUELS
260 _c2016-2017
500 _a"7,8,9,10,11"
500 _a64
942 _cBV
999 _c21342
_d21342