Andrey Yurkov
Lei Zhang
Stuart-Williams, Charles Sir
Bernard M. Garrett
William Earl Roake
Harry Manley Goodwin
Wilhelm Hittorf
Unknown Author
Alexander Moser
Faraday Society
Karl Elbs
V. I. Chernenko
Pados, István.
Walter Fieldhouse Clarke
Konrad Wilhelm Jurisch
Joseph Malzi
Richard Carl Dehmel
Fischer, Arthur engineer.
René Audubert