@article{IM2_2004_68_6_a6,
     author = {S. A. Nazarov},
     title = {Estimates for the accuracy of modelling boundary-value problems at the
},
     journal = {Izvestiya. Mathematics },
     pages = {1179--1215},
     publisher = {mathdoc},
     volume = {68},
     number = {6},
     year = {2004},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_2004_68_6_a6/}
}