@article{ZNSL_2000_271_a12,
     author = {S. I. Repin},
     title = {Estimates of  deviations from exact solutions of elliptic variational inequalities},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {188--203},
     publisher = {mathdoc},
     volume = {271},
     year = {2000},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2000_271_a12/}
}