ラルフ・ハートレー
Hartley, R.V.L., "The Mechanism of Gravitation", January 11, 1956, publication information unknown.
Hartley, R.V.L., "A Wave Mechanism of Quantum Phenomena", "Physical Review", Volume 33, Page 289, 1929 (abstract only)
Hartley, R.V.L., "Oscillations in Systems with Non-Linear Reactance","The Bell System Technical Journal" Volume 15, Number 3, July 1936, pp 424 - 440