SYNTHESIS, STRUCTURE, AND SPECTRAL FLUORESCENCE PROPERTIES OF 1,4-DI(5-PHENYL-2-OXAZOLYL)BENZENE HETEROANALOGS ArticleObukhov A.E., Afanasiadi L.Sh., Patsenker L.D., Shershukov V.M.Chemistry of Heterocyclic Compounds. Том 25. 1989. С. 1185-1189