TY - JOUR AU - D. V. Nekhaev AU - A. I. Shafarevich TI - A quasiclassical limit of the spectrum of a Schrödinger operator with complex periodic potential JO - Sbornik. Mathematics PY - 2017 SP - 1535 EP - 1556 VL - 208 IS - 10 UR - http://geodesic.mathdoc.fr/item/SM_2017_208_10_a6/ LA - en ID - SM_2017_208_10_a6 ER -