Inheritance of photochromic properties of nitro-substituted and halogenated spiropyrans containing the pyrrolidino[60]fullerene / V. A. Pomogaev, V. A. Barachevsky, A. R. Tuktarov [et al.] // The Journal of Physical Chemistry A. 2018. Vol. 122, № 2. P. 505-515. URL: http://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000646047