TY - BOOK AU - Krygowski, TM AU - Cyranski, MK TI - Aromaticity in heterocyclic compounds SN - 9783540683292 U1 - 547.7 PY - 2009/// CY - Berlin PB - Springer KW - HETEROCYCLIC COMPOUNDS-AROMATICITY N1 - Series is edited by R. R. Gupta ER -