@article{DAN_1965_165_3_a9,
     author = {I. K. Tsikunov},
     title = {On the structure of isometric transformations of a symplectic and orthogonal vector space},
     journal = {Doklady Akademii Nauk},
     pages = {500--501},
     publisher = {mathdoc},
     volume = {165},
     number = {3},
     year = {1965},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1965_165_3_a9/}
}