@article{DAN_1958_121_1_a3,
     author = {A. M. Vasil'ev},
     title = {On the orthogonal subgroups of classical compact {Lie} groups},
     journal = {Doklady Akademii Nauk},
     pages = {18--21},
     publisher = {mathdoc},
     volume = {121},
     number = {1},
     year = {1958},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1958_121_1_a3/}
}