R. V. L. Hartley

Phys. Rev. 13, 373 (1919) - Published 1 June, 1919

A. E. Caswell

Phys. Rev. 13, 386 (1919) - Published 1 June, 1919

H. W. Nichols

Phys. Rev. 13, 404 (1919) - Published 1 June, 1919

C. F. Hagenow

Phys. Rev. 13, 415 (1919) - Published 1 June, 1919

J. E. Shrader

Phys. Rev. 13, 434 (1919) - Published 1 June, 1919

L. G. Hoxton

Phys. Rev. 13, 438 (1919) - Published 1 June, 1919

Phys. Rev. 13, 480 (1919) - Published 1 June, 1919