%0 Journal Article %A E. T. Antropov %A A. P. Dronov %A N. N. Sobolev %A V. P. Cheremisinov %T Experimental determination of the matrix element of an electron transition for $\gamma$- %J Doklady Akademii Nauk %D 1963 %P 67-69 %V 153 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1963_153_1_a16/ %G ru %F DAN_1963_153_1_a16