TY - JOUR AU - N. E. Nyun'ko AU - Yu. N. Tyukhtyaev TI - Calculation of single-photon exchange diagrams in the quasipotential approach by means of the polarization operator JO - Teoretičeskaâ i matematičeskaâ fizika PY - 1972 SP - 56 EP - 63 VL - 12 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TMF_1972_12_1_a5/ LA - ru ID - TMF_1972_12_1_a5 ER -