@article{DE_1994_30_9_a3,
     author = {N. A. Izobov},
     title = {Polynomial representations of higher-order central exponents},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1508--1515},
     publisher = {mathdoc},
     volume = {30},
     number = {9},
     year = {1994},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1994_30_9_a3/}
}