@article{VMUMM_2003_5_a1,
     author = {A. Yu. Vorob'ev and T. A. Shaposhnikova},
     title = {Averaging of a problem with an obstacle},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {8--17},
     publisher = {mathdoc},
     number = {5},
     year = {2003},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_2003_5_a1/}
}