Royds, R.
Hardy, James Daniel (1918- ). Red. Herzfeld, Charles Maria (1925- ). Red.
Herzfeld, Charles Maria (1925- ). Red. Dahl, A. I. Red.
Eder, Franz X.
American Institute of Physics National Bureau of Standards National Research Council
Herzfeld, Charles Maria (1925- ). Red. Brickwedde, F. G. Red.