000 00283nam a2200121Ia 4500
008 230926s9999 xx 000 0 und d
245 _aJOURNAL OF MINES METALS AND FUELS
260 _c2021-2022
500 _a"11,12,1,2,3,4"
500 _a"69,70"
500 _aNOV-APR
942 _cBV
999 _c24160
_d24160