Eicher, Theophil; Houptmann, Siegfried & Speicher, Andreas The chemistry of heterocycles structure, reactions, syntheses, and applications - 3rd ed - Wiley-VCH Verlag GmbH & Co.KGaA, Germany 2012 - xiii,632 ISBN: 978-3-527-32747-8 Dewey Class. No.: 547.59 Eic