TY - JOUR AU - Droz-Vincent, Philippe TI - Two-body relativistic systems in external field JO - Annales de l'I.H.P. Physique théorique PY - 1989 DA - 1989/// SP - 187 EP - 204 VL - 50 IS - 2 PB - Gauthier-Villars UR - http://www.numdam.org/item/AIHPA_1989__50_2_187_0/ UR - https://zbmath.org/?q=an%3A0671.70008 UR - https://www.ams.org/mathscinet-getitem?mr=1002819 LA - en ID - AIHPA_1989__50_2_187_0 ER -