TY  - JOUR
AU  - Firlej, B.
AU  - Leśniewicz, M.
AU  - Rempulska, L.
TI  - Approximation of functions of two variables by some operators in weighted spaces
JO  - Rendiconti del Seminario Matematico della Università di Padova
PY  - 1999
SP  - 63
EP  - 82
VL  - 101
PB  - Seminario Matematico of the University of Padua
UR  - http://www.numdam.org/item/RSMUP_1999__101__63_0/
LA  - en
ID  - RSMUP_1999__101__63_0
ER  -