@article{DAN_1981_260_2_a17,
     author = {S. N. Bezryadin and M. G. Bezryadina and S. K. Maksimov},
     title = {Phase contrast on the electron-microscope micrographs, formed by one reflex},
     journal = {Doklady Akademii Nauk},
     pages = {339--342},
     publisher = {mathdoc},
     volume = {260},
     number = {2},
     year = {1981},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1981_260_2_a17/}
}