@article{TRSPY_2003_242_a1,
     author = {S. I. Adian and F. Grunevald and J. Mennicke},
     title = {On {Prime} {Quaternions,} {Hurwitz} {Relations,} and {a~New} {Operation} of {Group} {Extension}},
     journal = {Informatics and Automation},
     pages = {7--22},
     publisher = {mathdoc},
     volume = {242},
     year = {2003},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_2003_242_a1/}
}