Harvey Fletcher

Phys. Rev. (Series I) 33, 81 (1911) - Published 1 August, 1911

Henry Phelps Gage

Phys. Rev. (Series I) 33, 111 (1911) - Published 1 August, 1911

C. S. McGinnis and M. R. Harkins

Phys. Rev. (Series I) 33, 128 (1911) - Published 1 August, 1911

Grace Langford

Phys. Rev. (Series I) 33, 137 (1911) - Published 1 August, 1911

Phys. Rev. (Series I) 33, 152 (1911) - Published 1 August, 1911