Hanle 1977, pp. 606–609. Hanle, P.A. (1977), "Erwin Schrodinger's Reaction to Louis de Broglie's Thesis on the Quantum Theory", Isis, 68 (4): 606–609, doi:10.1086/351880, S2CID121913205
Einstein 1916, pp. 47–62, and a nearly identical version Einstein 1917, pp. 121–128 translated in ter Haar 1967, pp. 167–183. Einstein, A. (1916). "Zur Quantentheorie der Strahlung". Mitteilungen der Physikalischen Gesellschaft Zürich. 18: 47–62. Einstein, A. (1917). "Zur Quantentheorie der Strahlung". Physikalische Zeitschrift (in German). 18: 121–128. Bibcode:1917PhyZ...18..121E.
Hanle 1977, pp. 606–609. Hanle, P.A. (1977), "Erwin Schrodinger's Reaction to Louis de Broglie's Thesis on the Quantum Theory", Isis, 68 (4): 606–609, doi:10.1086/351880, S2CID121913205