@article{ZVMMF_1998_38_2_a6,
     author = {R. Z. Dautov},
     title = {High accuracy post-processing technique for free boundaries in finite element approximations to the obstacle problems},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {239--246},
     publisher = {mathdoc},
     volume = {38},
     number = {2},
     year = {1998},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1998_38_2_a6/}
}