TY  - JOUR
AU  - S. S. Ivanov
AU  - D. Ya. Petrina
TI  - Equations arising in the summation of perturbation-theory series for the scattering matrix
JO  - Doklady Akademii Nauk
PY  - 1969
SP  - 776
EP  - 779
VL  - 188
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1969_188_4_a12/
LA  - ru
ID  - DAN_1969_188_4_a12
ER  -