@article{DAN_1968_180_1_a2,
     author = {B. S. Brudovskii},
     title = {Type $s$~mappings of locally convex spaces},
     journal = {Doklady Akademii Nauk},
     pages = {15--17},
     publisher = {mathdoc},
     volume = {180},
     number = {1},
     year = {1968},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1968_180_1_a2/}
}