%0 Journal Article %A Haji-Ali, Abdul-Lateef %A Nobile, Fabio %A Tempone, Raúl %A Wolfers, Sören %T Multilevel weighted least squares polynomial approximation %J ESAIM: Mathematical Modelling and Numerical Analysis %D 2020 %P 649-677 %V 54 %N 2 %I EDP-Sciences %U http://www.numdam.org/articles/10.1051/m2an/2019045/ %R 10.1051/m2an/2019045 %G en %F M2AN_2020__54_2_649_0