@article{DE_1977_13_2_a13,
     author = {A. Yanushauskas},
     title = {Direct methods for studying the singularities of the sums of {Laplace} series that lie on the boundary of a ball of convergence},
     journal = {Differencialʹnye uravneni\^a},
     pages = {344--357},
     publisher = {mathdoc},
     volume = {13},
     number = {2},
     year = {1977},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1977_13_2_a13/}
}