You may also wish to search for items by Slough.
Only one matching reference was found.
Slough, W.; Ubbelohde, A.R., Electron donor and acceptor complexes with aromatic systems. Part III. Absorption spectra and some benzoquinolines and of their complexes with bromine in solution, J. Chem. Soc., 1957, 911-917. [all data]