%0 Journal Article %A E. M. Dianov %A A. Ya. Karasik %A V. B. Neustruev %A A. M. Prokhorov %A I. A. Shcherbakov %T Direct measurements of luminescence quantum yield from metastable state of $^4F_{3/2}\mathrm{Nd}^{3+}$ %J Doklady Akademii Nauk %D 1975 %P 64-67 %V 224 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1975_224_1_a14/ %G ru %F DAN_1975_224_1_a14