@article{FPM_2013_18_4_a0,
     author = {A. S. Atkarskaya},
     title = {Stable groups over associative rings with $1/2$. {Description} of isomorphisms of the stable unitary groups},
     journal = {Fundamentalʹna\^a i prikladna\^a matematika},
     pages = {3--21},
     publisher = {mathdoc},
     volume = {18},
     number = {4},
     year = {2013},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FPM_2013_18_4_a0/}
}