TY  - JOUR
AU  - K. M. Medvedev
TI  - The Inverses of Solvable Extensions and Proper Restrictions of the Operation  $-\operatorname{div}\operatorname{grad}$ Are Not Volterra Operators
JO  - Differencialʹnye uravneniâ
PY  - 2001
SP  - 242
EP  - 251
VL  - 37
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_2001_37_2_a12/
LA  - ru
ID  - DE_2001_37_2_a12
ER  -