* Hartley, R.V.L., "A Wave Mechanism of Quantum Phenomena", "Physical Review", Volume 33, Issue 2, 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, pp 424 – 440, (July 1936).
#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#Hartley, R.V.L., "A More Symmetrical Fourier Analysis Applied to Transmission Problems," "Proceedings of the IRE" 30, pp.