000 00288nam a2200121Ia 4500
008 161121s9999 xx 000 0 und d
100 _aNational proceeding committee
245 0 _aPRoductivity trends in iron and steel in
260 _cNIL
365 _b0
650 _aNIL
942 _cBK
999 _c90133
_d90133