@article{M2AN_2020__54_2_649_0,
     author = {Haji-Ali, Abdul-Lateef and Nobile, Fabio and Tempone, Ra\'ul and Wolfers, S\"oren},
     title = {Multilevel weighted least squares polynomial approximation},
     journal = {ESAIM: Mathematical Modelling and Numerical Analysis },
     pages = {649--677},
     publisher = {EDP-Sciences},
     volume = {54},
     number = {2},
     year = {2020},
     doi = {10.1051/m2an/2019045},
     mrnumber = {4071315},
     zbl = {1439.41011},
     language = {en},
     url = {http://www.numdam.org/articles/10.1051/m2an/2019045/}
}