@article{ASUO_2013_XXI_3_a17,
     author = {D. R. Merlușca},
     title = {A duality-type method for the obstacle problem},
     journal = {Analele Universit\u{a}\c{t}ii "Ovidius" Constan\c{t}a Seria Matematic\u{a}},
     publisher = {mathdoc},
     volume = {XXI},
     number = {3},
     year = {2013},
     url = {http://geodesic.mathdoc.fr/item/ASUO_2013_XXI_3_a17/}
}