TY  - JOUR
AU  - L. A. Pastur
AU  - V. A. Tkachenko
TI  - Geometry of the spectrum of the one-dimensional Schr\"odinger equation with a periodic complex-valued potential
JO  - Matematičeskie zametki
PY  - 1991
SP  - 88
EP  - 95
VL  - 50
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZM_1991_50_4_a12/
LA  - ru
ID  - MZM_1991_50_4_a12
ER  -