000 00287nam a2200109Ia 4500
008 220204s9999 xx 000 0 und d
082 _a678:66.097
_bBoo;1
100 _aBoor, J
245 0 _aZeigler-Natta catalysts and polymerisations
260 _aNew York
_bAcademic
_c1979
942 _cBK
999 _c34881
_d34881