TY  - JOUR
TI  - “Pontryagin Readings-XV” at Voronezh spring mathematical school “Modern methods in qualitative theory of boundary value problems”
JO  - Differencialʹnye uravneniâ
PY  - 2004
SP  - 1579
EP  - 1580
VL  - 40
IS  - 11
UR  - http://geodesic.mathdoc.fr/item/DE_2004_40_11_a17/
LA  - ru
ID  - DE_2004_40_11_a17
ER  -