000 00272nam a2200121Ia 4500
008 230926s9999 xx 000 0 und d
245 _aJOURNAL OF MINES METALS AND FUELS
260 _c2022-2022
500 _a"5,6,7,8"
500 _a70
500 _aMAY-AUG
942 _cBV
999 _c24161
_d24161