@article{10_21136_AM_1980_103872,
     author = {Hlav\'a\v{c}ek, Ivan},
     title = {Convergence of dual finite element approximations for unilateral boundary value problems},
     journal = {Applications of Mathematics},
     pages = {375--386},
     publisher = {mathdoc},
     volume = {25},
     number = {5},
     year = {1980},
     doi = {10.21136/AM.1980.103872},
     mrnumber = {0590491},
     zbl = {0462.65064},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/AM.1980.103872/}
}