C. W. Hewlett
Phys. Rev. 17, 284 (1921) - Published 1 March, 1921
R. D. Duncan, Jr.
Phys. Rev. 17, 302 (1921) - Published 1 March, 1921
Warren Mason
Phys. Rev. 17, 315 (1921) - Published 1 March, 1921
I. Garnett Barber
Phys. Rev. 17, 322 (1921) - Published 1 March, 1921
Leo Joseph Lassalle
Phys. Rev. 17, 354 (1921) - Published 1 March, 1921
Phys. Rev. 17, 367 (1921) - Published 1 March, 1921