@article{MZM_2009_86_2_a13,
     author = {R. S. Ismagilov and Yu. I. Lyubich},
     title = {Family of {Quaternion} {Norms} with {Isometry} {Group~}$\mathbb Z_2$ in {General} {Position}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {310--313},
     publisher = {mathdoc},
     volume = {86},
     number = {2},
     year = {2009},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2009_86_2_a13/}
}