00422nam a22001457a 4500008004100000040005500041080001400096245004000110260003900150300001500189500001700204650001300221653001500234700002700249230802b        |||||||| |||| 00| 0 eng d  aNational Science LibrarycNational Science Library  a547.7(05)  aAdvances in heterocyclic chemistry   aNew York: bAcademic Press, c1974  aix, 360p.   aVol. 17 1974  aScience   aChemistry   aKartritzky, A R (Ed.)