@article{DE_1975_11_2_a9,
     author = {M. D. Khriptun},
     title = {Multiplication theorems for the solutions of the $m$th order generalized {Bessel} differential equation},
     journal = {Differencialʹnye uravneni\^a},
     pages = {287--293},
     publisher = {mathdoc},
     volume = {11},
     number = {2},
     year = {1975},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1975_11_2_a9/}
}