@article{ETNA_2001__12__a5,
     author = {Ben Belgacem, Faker and Brenner, Susanne C.},
     title = {Some nonstandard finite element estimates with applications to $3D$ {Poisson} and {Signorini} problems},
     journal = {Electronic transactions on numerical analysis},
     pages = {134--148},
     publisher = {mathdoc},
     volume = {12},
     year = {2001},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ETNA_2001__12__a5/}
}