H. Horton Sheldon

Phys. Rev. 16, 165 (1920) - Published 1 September, 1920

George Rosengarten

Phys. Rev. 16, 173 (1920) - Published 1 September, 1920

Henry G. Cordes

Phys. Rev. 16, 179 (1920) - Published 1 September, 1920

Hugo Fricke.

Phys. Rev. 16, 202 (1920) - Published 1 September, 1920

R. A. Heising.

Phys. Rev. 16, 216 (1920) - Published 1 September, 1920

C. W. Heaps.

Phys. Rev. 16, 238 (1920) - Published 1 September, 1920