TY  - JOUR
AU  - I. Ya. Bakelman
TI  - Geometric problems in quasilinear elliptic equations
JO  - Trudy Matematicheskogo Instituta imeni V.A. Steklova
PY  - 1970
SP  - 45
EP  - 109
VL  - 25
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/RM_1970_25_3_a1/
LA  - en
ID  - RM_1970_25_3_a1
ER  -