@article{DE_1976_12_9_a7,
     author = {N. E. Tovmasyan},
     title = {Linear ordinary differential equations with singularities in the class of analytic functions},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1596--1604},
     publisher = {mathdoc},
     volume = {12},
     number = {9},
     year = {1976},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1976_12_9_a7/}
}