@article{DE_1990_26_12_a15,
     author = {V. G. Prikazchikov and Zh. P. Allanazarov},
     title = {A scheme of fourth-order accuracy in a spectral problem with variable coefficients},
     journal = {Differencialʹnye uravneni\^a},
     pages = {2153--2157},
     publisher = {mathdoc},
     volume = {26},
     number = {12},
     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1990_26_12_a15/}
}