Henry S. Carhart
Phys. Rev. (Series I) 26, 209 (1908) - Published 1 March, 1908
A. P. Wills
Phys. Rev. (Series I) 26, 220 (1908) - Published 1 March, 1908
O. W. Richardson
Phys. Rev. (Series I) 26, 248 (1908) - Published 1 March, 1908
L. A. Freudenberger
Phys. Rev. (Series I) 26, 254 (1908) - Published 1 March, 1908
Phys. Rev. (Series I) 26, 258 (1908) - Published 1 March, 1908