@article{SM_1969_9_1_a1,
     author = {Yu. F. Korobeinik},
     title = {The existence of an analytic solution of an infinite order differential equation and the nature of its domain of analyticity},
     journal = {Sbornik. Mathematics},
     pages = {53--71},
     publisher = {mathdoc},
     volume = {9},
     number = {1},
     year = {1969},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1969_9_1_a1/}
}