William Francis Magie
Phys. Rev. (Series I) 9, 65 (1899) - Published 1 August, 1899
John C. Shedd
Phys. Rev. (Series I) 9, 86 (1899) - Published 1 August, 1899
J. S. Stevens and H. G. Dorsey
Phys. Rev. (Series I) 9, 116 (1899) - Published 1 August, 1899
R. W. Quick
Phys. Rev. (Series I) 9, 121 (1899) - Published 1 August, 1899
