PACS:07.78.+s, 79.70.+q (all) DOI:10.1070/PU1974v016n04ABEH005300 URL: https://ufn.ru/en/articles/1974/4/g/ Citation: Mirgorodskii B Yu, Kostyukevich D Ya, Makarchenko D A "Demonstration microscope with field emission" Sov. Phys. Usp.16 553–556 (1974)