Roy H. Garstang
A Relativistic Treatment of Radiation Transitions
F. A. Babushkin
Relativistic recoil in radiative atomic transitions (2 pages)
Hartmut M. Pilkuhn
Standard Model of Non-relativistic Matter and Radiation
Stephen J. Gustafson, Israel Michael Sigal
Non-Relativistic Matter and Quantized Radiation
Marcel Griesemer
A theory of relativistic particle radiation in the quasi-classical approximation
Alexander I. Akhiezer, N.F. Shul’ga