@article{TM_1961_64_a17,
     author = {Yu. N. Frolov},
     title = {Solutions of an equation of infinite order in generalized derivatives},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {294--315},
     year = {1961},
     volume = {64},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TM_1961_64_a17/}
}