@article{CMA_2013_88_a2,
     author = {R. R. Aidagulov and M. V. Shamolin},
     title = {Polynumbers, norms, metrics, and polyingles},
     journal = {Contemporary Mathematics and Its Applications},
     pages = {30--47},
     publisher = {mathdoc},
     volume = {88},
     year = {2013},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/CMA_2013_88_a2/}
}