00309nam a2200121Ia 4500003000400000008004100004020001300045040000800058100002200066245005700088260002700145300001500172LDD181029s9999    xx            000 0 und d  a80307264  cLDD  aKatritzky, Alan R 0aHandbook of heterocyclic chemistrycAlan R Katritzky  aOxfordbPergamonc1985  axxii, 542p