Reports of the Phys.-Techn. Roentgen Institute and the Leningrad Phys.-Techn. Laboratory 1918-1926.
Soviet Union.National Physical and Technical Roentgen-Institute
Soviet Union.Leningrad Technical and Physical Laboratory.
Leningrad : Scientific-Technical Department of the Supreme Council of the National Economy,
1926.
Physics.
X-rays.
Soviet Union Leningrad.