TY  - JOUR
AU  - Yu. S. Ledyaev
AU  - J. S. Treiman
TI  - Sub- and supergradients of envelopes, semicontinuous closures, and limits of sequences of functions
JO  - Trudy Matematicheskogo Instituta imeni V.A. Steklova
PY  - 2012
SP  - 345
EP  - 373
VL  - 67
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/RM_2012_67_2_a4/
LA  - en
ID  - RM_2012_67_2_a4
ER  -