Clement D. Child
Phys. Rev. (Series I) 5, 193 (1897) - Published 1 October, 1897
N. Ernest Dorsey
Phys. Rev. (Series I) 5, 213 (1897) - Published 1 October, 1897
G. F. Hull
Phys. Rev. (Series I) 5, 231 (1897) - Published 1 October, 1897
Fernando Sanford and Lillian E. Ray
Phys. Rev. (Series I) 5, 247 (1897) - Published 1 October, 1897