Blum, Alexander S. and Rickles, Dean (2018). George B. Jeffery (1921): The Field of an Electron on Einstein’s Theory of Gravitation. In: Quantum Gravity in the First Half of the Twentieth Century: A Sourcebook. Berlin: Max-Planck-Gesellschaft zur Förderung der Wissenschaften.
George B. Jeffery (1921). The Field of an Electron on Einstein’s
Theory of Gravitation. Proceedings of the Royal Society of London. Series A 99 (697), 123–134.