@article{AA_2008_20_3_a6,
     author = {E. Yu. Panov},
     title = {On the symmetrizability of hyperbolic matrix spaces},
     journal = {Algebra i analiz},
     pages = {187--196},
     publisher = {mathdoc},
     volume = {20},
     number = {3},
     year = {2008},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AA_2008_20_3_a6/}
}