000 00304nam a2200121Ia 4500
008 170101s2017 xx 000 0 und d
082 _a622 C27A
100 _aCentral Mining Research Station
245 0 _aAnnual report
650 _aMINING ENGINEERING
653 _aMINING ENGINEERING
942 _2ddc
_cB
999 _c51594
_d51594