TY - JOUR AU - D. Ya. Petrina TI - Analytic properties of contributions from Feynman diagrams JO - Doklady Akademii Nauk PY - 1963 SP - 808 EP - 811 VL - 149 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1963_149_4_a14/ LA - ru ID - DAN_1963_149_4_a14 ER -