Intramolecular hydrogen bonding in 8-hydroxyquinoline and 8-hydroxyquinoline-N-oxide. UV photoelectron spectra and MO calculationsSalvatore Millefiori and Gaetano GranozziJ. Chim. Phys., 83 (1986) 507-510DOI: https://doi.org/10.1051/jcp/1986830507