Complex formation of 2,2-diphenyl-2H-benzo[f]chromene containing the aza-18-crown-6-ether fragment in the polymeric layer / V.B. Nazarov, S.B. Brichkin, T.M. Nikolaeva, O.A. Fedorova, S.P. Gromov, A.V. Chebun'kova, M.V. Alfimov // Russian Chemical Bulletin. – 2003. – Т. 52. – № 12. – P. 2661-2667