Vladimir Shuleikin
Fred Soyka
Fanny Cook Gates
Carl Barus
Unknown Author
Jonathan M. Charry
M. Misakian
Aleksander Bielecki
Robert Harry Prince
Teddington, Eng. National Physical Laboratory
Bernie M. Penetrante
Gladys A. Anslow
Karl Friedrich Kaehler
Robert Kavet
F. Landis
Aleksandr Leonidovich Chizhevskiĭ
E. T. Protasevich
Janette Adele Castella Buckley
International Conference on Ionization of the Air Franklin Institute, Philadelphia 1961.