@article{EJDE_2012__2012__a15,
     author = {Argaez, Carlos and Melgaard, Michael},
     title = {Existence of a minimizer for the quasi-relativistic {Kohn-Sham} model},
     journal = {Electronic Journal of Differential Equations},
     publisher = {mathdoc},
     volume = {2012},
     year = {2012},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2012__2012__a15/}
}