TY  - JOUR
AU  - Yu. G. Reshetnyak
TI  - Generalized derivatives and differentiability almost everywhere
JO  - Sbornik. Mathematics
PY  - 1968
SP  - 293
EP  - 302
VL  - 4
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SM_1968_4_3_a0/
LA  - en
ID  - SM_1968_4_3_a0
ER  -