@article{DE_1992_28_9_a19,
     author = {E. K. Bonchev},
     title = {Error estimation for the numerical solution of boundary value problems for an ordinary differential equation by means of $\tau$-moduli},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1630--1633},
     publisher = {mathdoc},
     volume = {28},
     number = {9},
     year = {1992},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1992_28_9_a19/}
}