@article{ZNSL_2002_289_a9,
     author = {E. V. Dybkova},
     title = {On overdiagonal subgroups of the hyperbolic unitary group for a skew field},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {154--206},
     year = {2002},
     volume = {289},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2002_289_a9/}
}