@article{DAN_1967_173_4_a0,
     author = {V. I. Averbukh and O. G. Smolyanov},
     title = {Differentiation in linear topological spaces},
     journal = {Doklady Akademii Nauk},
     pages = {735--738},
     publisher = {mathdoc},
     volume = {173},
     number = {4},
     year = {1967},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1967_173_4_a0/}
}