Jinfeng Zhao, Peng Song & Fengcai Ma. (1970). A New Excited-State Intramolecular Proton Transfer Mechanism for C2 Symmetry of 10-Hydroxybenzoquinoline.
            <i>Communications in Computational Chemistry</i>. <i>2</i> (3).
            117-130.
         doi:10.4208/cicc.2014.v2.n3.3