L. A. Welo
Phys. Rev. 12, 251 (1918) - Published 1 October, 1918
E. R. Wolcott.
Phys. Rev. 12, 284 (1918) - Published 1 October, 1918
James E. Ives
Phys. Rev. 12, 293 (1918) - Published 1 October, 1918
T. K. Chinmayanandam.
Phys. Rev. 12, 314 (1918) - Published 1 October, 1918
W. E. Tisdale.
Phys. Rev. 12, 325 (1918) - Published 1 October, 1918
