TY  - JOUR
AU  - P. G. Grinevich
AU  - S. P. Novikov
TI  - Two-dimensional ``inverse scattering problem'' for negative energies and generalized-analytic functions. I. Energies below the ground state
JO  - Funkcionalʹnyj analiz i ego priloženiâ
PY  - 1988
SP  - 23
EP  - 33
VL  - 22
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/FAA_1988_22_1_a2/
LA  - ru
ID  - FAA_1988_22_1_a2
ER  -