TY  - JOUR
AU  - D. C. Spencer
TI  - Overdetermined systems of linear partial differential equations
JO  - Matematika
PY  - 1970
SP  - 66
EP  - 90
VL  - 14
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MAT_1970_14_2_a2/
LA  - ru
ID  - MAT_1970_14_2_a2
ER  -