000 00281nam a2200121Ia 4500
008 230926s9999 xx 000 0 und d
245 _aJOURNAL OF MINES METALS AND FUELS
260 _c2021-2021
500 _a"3,4,5,6,7,8,9,10"
500 _a69
500 _aMAR-OCT
942 _cBV
999 _c24159
_d24159