TY  - JOUR
AU  - V. A. Kondrat'ev
AU  - S. D. Èidel'man
TI  - On the summability of positive solutions of partial differential equations of arbitrary order in a~neighborhood of a~characteristic manifold
JO  - Sbornik. Mathematics
PY  - 1976
SP  - 521
EP  - 531
VL  - 28
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SM_1976_28_4_a5/
LA  - en
ID  - SM_1976_28_4_a5
ER  -