INVESTIGATIONS OF BIS-CHROMOPHORE SYSTEMS: RELATIONSHIP BETWEEN SPECTRAL BEHAVIOUR AND CHARGE TRANSFER IN 2-(3-COUMAROYL)-BENZOPYRYLIUM PERCHLORATES: UDC 544.431.13 + 535.372 + 574.814.1. Вісник: Хімія 2014, 50 (1), 74-77.