Experimental and theoretical study of spectroscopy of binuclear difluoroborate dipyrromethene complexes / Iu. V. Aksenova, V. A. Pomogaev, R. T. Kuznetsova [et al.] // Russian physics journal. 2022. Vol. 64, № 11. P. 2062-2069. URL: http://vital.lib.tsu.ru/vital/access/manager/Repository/koha:001002448