@article{DE_2000_36_6_a17,
     author = {O. P. Iliev},
     title = {A finite-difference scheme of second-order accuracy for elliptic equations with discontinuous coefficients},
     journal = {Differencialʹnye uravneni\^a},
     pages = {837--838},
     publisher = {mathdoc},
     volume = {36},
     number = {6},
     year = {2000},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_2000_36_6_a17/}
}