@article{FAA_2008_42_3_a11,
     author = {R. S. Ismagilov and Yu. I. Lyubich},
     title = {Quaternion {Normed} {Space} with {Isometry} {Group~}$\mathbb{Z}_2$},
     journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a},
     pages = {90--92},
     publisher = {mathdoc},
     volume = {42},
     number = {3},
     year = {2008},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FAA_2008_42_3_a11/}
}