déplacement de Lamb
1982 / Note on the Lamb shift / B. Davies / American Journal of Physics 50 (1982) p. 331 [doi]
1994 / Infrared divergence, Thomson scattering, and Lamb shift / I. B. Khriplovich ; A. I. Milstein ; A. S. Yelkhovsky / American Journal of Physics 62 (1994) p. 70 [doi]