@article{DE_1986_22_6_a5,
     author = {M. V. Fedoryuk},
     title = {Isomonodromic deformations of equations with irregular singularity},
     journal = {Differencialʹnye uravneni\^a},
     pages = {961--967},
     publisher = {mathdoc},
     volume = {22},
     number = {6},
     year = {1986},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1986_22_6_a5/}
}