@article{ZNSL_2011_395_a6,
     author = {Kh. D. Ikramov},
     title = {On two-isometries in finite-dimensional spaces},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {71--74},
     publisher = {mathdoc},
     volume = {395},
     year = {2011},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2011_395_a6/}
}