TY  - JOUR
AU  - Draganov, Borislav
TI  - Strong converse inequalities for the weighted simultaneous approximation by the Szász-Mirakjan operator
JO  - Serdica Mathematical Journal
PY  - 2021
SP  - 261
EP  - 286
VL  - 46
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SMJ2_2021_46_3_a4/
LA  - en
ID  - SMJ2_2021_46_3_a4
ER  -