%0 Journal Article %A S. N. Bezryadin %A M. G. Bezryadina %A S. K. Maksimov %T Phase contrast on the electron-microscope micrographs, formed by one reflex %J Doklady Akademii Nauk %D 1981 %P 339-342 %V 260 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1981_260_2_a17/ %G ru %F DAN_1981_260_2_a17