@article{DAN_1990_314_2_a7,
     author = {Yu. A. Nikolaevskii},
     title = {Submanifolds of a {Euclidean} space with a completely geodesic},
     journal = {Doklady Akademii Nauk},
     pages = {297--300},
     publisher = {mathdoc},
     volume = {314},
     number = {2},
     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1990_314_2_a7/}
}