@article{DE_1995_31_11_a24,
     author = {V. V. Trefilov},
     title = {Letter to the editors: {``On} a system of basis functions for linear differential equations'' {[Differentsial'nye} {Uravneniya} \textbf{30} (1994), no. 12, 2186--2187, 2208, (1995); {MR1383728]}},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1939},
     publisher = {mathdoc},
     volume = {31},
     number = {11},
     year = {1995},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1995_31_11_a24/}
}