@article{FAA_2005_39_4_a2,
     author = {V. V. Kozlov},
     title = {Restrictions of {Quadratic} {Forms} to {Lagrangian} {Planes,} {Quadratic} {Matrix} {Equations,} and {Gyroscopic} {Stabilization}},
     journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a},
     pages = {32--47},
     publisher = {mathdoc},
     volume = {39},
     number = {4},
     year = {2005},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FAA_2005_39_4_a2/}
}