TY - JOUR AU - I. M. Krichever TI - Potentials with zero coefficient of reflection on a background of finite-zone potentials JO - Funkcionalʹnyj analiz i ego priloženiâ PY - 1975 SP - 77 EP - 78 VL - 9 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/FAA_1975_9_2_a16/ LA - ru ID - FAA_1975_9_2_a16 ER -