%0 Journal Article %A A. N. Sidorov %T A spectral study of the photoreduction of hydrogenated tetraphenylporphin derivatives %J Doklady Akademii Nauk %D 1965 %P 128-131 %V 161 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1965_161_1_a34/ %G ru %F DAN_1965_161_1_a34