@article{DAN_1957_117_3_a2,
     author = {I. S. Kukles},
     title = {On {Frommer's} method in singular point investigations},
     journal = {Doklady Akademii Nauk},
     pages = {367--370},
     publisher = {mathdoc},
     volume = {117},
     number = {3},
     year = {1957},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1957_117_3_a2/}
}