000			00294nam a2200121Ia 4500
001			23453
008			170722s9999 xx 000 0 und d
100			_aAcheson, Rm
245			_aIntroduction to the chemistry of heterocyclic compounds /
250			_a2nd ed.
260			_c1967.
942			_cGEN
999			_c75477 _d75477