@article{M2AN_2004__38_6_903_0,
     author = {El Alaoui, Linda and Ern, Alexandre},
     title = {Residual and hierarchical a posteriori error estimates for nonconforming mixed finite element methods},
     journal = {ESAIM: Mod\'elisation math\'ematique et analyse num\'erique},
     pages = {903--929},
     year = {2004},
     publisher = {EDP Sciences},
     volume = {38},
     number = {6},
     doi = {10.1051/m2an:2004044},
     mrnumber = {2108938},
     zbl = {1077.65113},
     language = {en},
     url = {https://www.numdam.org/articles/10.1051/m2an:2004044/}
}