TY  - JOUR
AU  - A. V. Borovskikh
TI  - Sign Regularity Conditions for Discontinuous Boundary-Value Problems
JO  - Matematičeskie zametki
PY  - 2003
SP  - 643
EP  - 655
VL  - 74
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZM_2003_74_5_a0/
LA  - ru
ID  - MZM_2003_74_5_a0
ER  -