000 00252nam a2200121Ia 4500
008 220811s9999 xx 000 0 und d
245 _aCHEMISTRY TODAY
260 _c2020-2020
500 _a"1,2,3"
500 _a29
500 _aJAN-MAR
942 _cBV
999 _c23531
_d23531