TY  - JOUR
AU  - Đinh Dung
TI  - Some approximative characteristics of~the~classes of~smooth functions of~several variables in~the~metric of~$\mathscr L_2$
JO  - Trudy Matematicheskogo Instituta imeni V.A. Steklova
PY  - 1979
SP  - 161
EP  - 162
VL  - 34
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/RM_1979_34_4_a9/
LA  - en
ID  - RM_1979_34_4_a9
ER  -