An ultrafast pre-organization of the [2 + 2] photocycloaddition of styryl dyes in 1:2 host-guest complexes with cucurbit[8]urils / N.K. Petrov, D.A. Ivanov, Y.A. Shandarov, I.V. Kryukov, V.G. Avakyan, M.V. Alfimov, N.A. Lobova, S.P. Gromov, A.D. Svirida // Chemical Physics Letters. – 2017. – Т. 673. – P. 99-102