Aromaticity and photophysics of tetrasila- and tetragerma-annelated tetrathienylenes as new representatives of the hetero[8]circulene family / G. V. Baryshnikov, R. R. Valiev, V. N. Cherepanov [et al.] // Physical chemistry chemical physics. 2019. Vol. 21, № 18. P. 9246-9254. URL: http://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000673520