000 00256nam a2200121Ia 4500
008 230926s9999 xx 000 0 und d
245 _aCHEMISTRY TODAY
260 _c2022-2022
500 _a"5,6,7,8,9"
500 _a31
500 _aMAY-SEP
942 _cBV
999 _c24133
_d24133