A. G. Worthing
Phys. Rev. 5, 445 (1915) - Published 1 June, 1915
George A. Campbell
Phys. Rev. 5, 452 (1915) - Published 1 June, 1915
J. R. Wright and O. F. Smith
Phys. Rev. 5, 459 (1915) - Published 1 June, 1915
Gilbert N. Lewis and Elliot Q. Adams
Phys. Rev. 5, 510 (1915) - Published 1 June, 1915