00350nam a2200133Ia 4500008004100000020001000041040001600051041001200067082001700079100002000096245004000116260004500156300001500201230917s9999||||xx |||||||||||||| ||und||  cPON45  e14569aMAIN  aEnglish  a547.59 B453H  aBergman, J, ed. 0aHetrocycles in Bioorganic Chemistry  aLondonbRoyal Society of Chemistryc1991  aviii,23 p.