@article{DAN_1977_236_4_a8,
     author = {A. V. Chakmazyan},
     title = {A {Norden} normalized submanifold of $P_n$ with a parallel field of normal directions},
     journal = {Doklady Akademii Nauk},
     pages = {816--819},
     publisher = {mathdoc},
     volume = {236},
     number = {4},
     year = {1977},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1977_236_4_a8/}
}