Walter P. White
Phys. Rev. (Series I) 19, 305 (1904) - Published 1 November, 1904
W. P. Bradley and A. W. Rowe
Phys. Rev. (Series I) 19, 330 (1904) - Published 1 November, 1904
Arthur W. Gray
Phys. Rev. (Series I) 19, 344 (1904) - Published 1 November, 1904
Arthur W. Gray
Phys. Rev. (Series I) 19, 347 (1904) - Published 1 November, 1904