%0 Journal Article %A J. L. Brown %A Y. A. Kirillov %A K. V. Chibisov %T The discrete nature of the impurity-induced spectral sensitivity of the photographic emulsions %J Doklady Akademii Nauk %D 1963 %P 353-356 %V 149 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1963_149_2_a37/ %G ru %F DAN_1963_149_2_a37