Ernest Merritt and Oscar M. Stewart
Phys. Rev. (Series I) 7, 129 (1898) - Published 1 September, 1898
S. N. Taylor
Phys. Rev. (Series I) 7, 149 (1898) - Published 1 September, 1898
H. M. Goodwin and George K. Burgess
Phys. Rev. (Series I) 7, 171 (1898) - Published 1 September, 1898
Phys. Rev. (Series I) 7, 188 (1898) - Published 1 September, 1898
