Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) K. Itoh and T. Azumi,Shift of emission band upon excitation at the long wavelength absorptio edge. 1. A preliminary survey for quinine and related compounds,Chemical Physics Letters,0009-2614,Elsevier BV,1973-10,22,2,395-399,https://cir.nii.ac.jp/crid/1360302868772763136,https://doi.org/10.1016/0009-2614(73)80576-7