TY  - JOUR
AU  - V. I. Yudovich
TI  - Periodic differential equations with self-adjoint monodromy operator
JO  - Sbornik. Mathematics
PY  - 2001
SP  - 455
EP  - 478
VL  - 192
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SM_2001_192_3_a6/
LA  - en
ID  - SM_2001_192_3_a6
ER  -