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. (2014). Bulletin of Taras Shevchenko National University of Kyiv. Chemistry, 50(1), 74-77. https://chemistry.bulletin.knu.ua/en/article/view/8535