@article{DE_1981_17_8_a16,
     author = {M. A. Ilyukovich and M. S. Saburov},
     title = {On the minimal deviation of the solutions of a differential equation of second order from the initial state},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1493--1494},
     publisher = {mathdoc},
     volume = {17},
     number = {8},
     year = {1981},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1981_17_8_a16/}
}