Evan E. Bolton; Yanli Wang; Paul A. Thiessen; Stephen H. Bryant (2008). „Chapter 12 PubChem: Integrated Platform of Small Molecules and Biological Activities”. Annual Reports in Computational Chemistry. 4: 217—241. doi:10.1016/S1574-1400(08)00012-1.
T. M. Krygowski; H. Szatyowicz & J. E. Zachara (2005). „How H-bonding Modifies Molecular Structure and π-Electron Delocalization in the Ring of Pyridine/Pyridinium Derivatives Involved in H-Bond Complexation†”. J. Org. Chem. 70 (22): 8859. PMID16238319. doi:10.1021/jo051354h.
T. M. Krygowski; H. Szatyowicz & J. E. Zachara (2005). „How H-bonding Modifies Molecular Structure and π-Electron Delocalization in the Ring of Pyridine/Pyridinium Derivatives Involved in H-Bond Complexation†”. J. Org. Chem. 70 (22): 8859. PMID16238319. doi:10.1021/jo051354h.