Waldy Sombra
R. C. Anderson
Władysław Konopczyński
Robert McCrum
Zdravko Leković
Bernd Jähne
Stefan Maria Kuczyński
National Bureau of Standards.
Maslov, E. P.
NAS/UWT.
Richard Kearney
Michael E. Zimmerman
Institution of Electrical Engineers.
Raul Jose Agamennoni
Diego Marín