Katritzky,A.R Physical Methods in Heterocyclic Chemistry / by A.R.Katritzky - London: Academic Press, 1971. - xiv,480p. ISBN: 0124011047 Subjects--Topical Terms: ChemistryHeteroaromatic ReactivityHeterocyclic SystemsNuclear Quadrupole Dewey Class. No.: 547.59 / KAT/P