@article{M2AN_2021__55_S1_S879_0,
     author = {Ojea, Ignacio},
     title = {Optimal \protect\emph{a priori} error estimates in weighted {Sobolev} spaces for the {Poisson} problem with singular sources},
     journal = {ESAIM: Mathematical Modelling and Numerical Analysis },
     pages = {S879--S907},
     year = {2021},
     publisher = {EDP-Sciences},
     volume = {55},
     number = {Suppl\'ement},
     doi = {10.1051/m2an/2020065},
     zbl = {1473.35126},
     language = {en},
     url = {https://www.numdam.org/articles/10.1051/m2an/2020065/}
}