TY  - JOUR
AU  - V. Ya. Sikiryavyi
TI  - On the theory of boundary value problems for equations with an operator of pseudospherical differentiation
JO  - Trudy Matematicheskogo Instituta imeni V.A. Steklova
PY  - 1971
VL  - 26
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/RM_1971_26_4_a17/
LA  - ru
ID  - RM_1971_26_4_a17
ER  -