TY  - JOUR
AU  - N. Ya. Beznoshchenko
TI  - Nonuniqueness of the solution of the problem of determining the coefficients of the leading terms of equations in partial derivatives
JO  - Matematičeskie zametki
PY  - 1984
SP  - 305
EP  - 308
VL  - 36
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZM_1984_36_3_a2/
LA  - ru
ID  - MZM_1984_36_3_a2
ER  -