TY  - JOUR
AU  - B. M. Levitan
TI  - On the closure of the set of finite-zone potentials
JO  - Sbornik. Mathematics
PY  - 1985
SP  - 67
EP  - 89
VL  - 51
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SM_1985_51_1_a4/
LA  - en
ID  - SM_1985_51_1_a4
ER  -