000 00253nam a2200097Ia 4500
008 220204s9999 xx 000 0 und d
082 _a547.7
_bADV.2
245 0 _aAdvances in heterocyclic chemistry. V 2
260 _aNew York
_bAcademic
_c1963
942 _cBK
999 _c20566
_d20566