C. E. Mendenhall and L. R. Ingersoll

Phys. Rev. (Series I) 25, 1 (1907) - Published 1 July, 1907

G. A. Hulett

Phys. Rev. (Series I) 25, 16 (1907) - Published 1 July, 1907

George W. Pierce

Phys. Rev. (Series I) 25, 31 (1907) - Published 1 July, 1907

A. H. Taylor

Phys. Rev. (Series I) 25, 61 (1907) - Published 1 July, 1907

W. B. Cartmel

Phys. Rev. (Series I) 25, 64 (1907) - Published 1 July, 1907

Phys. Rev. (Series I) 25, 70 (1907) - Published 1 July, 1907