@article{MZM_2015_98_4_a12,
     author = {A. V. Greshnov and M. V. Tryamkin},
     title = {Exact {Values} of {Constants} in the {Generalized} {Triangle} {Inequality} for {Some} $(1,q_2)${-Quasimetrics} on {Canonical} {Carnot} {Groups}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {635--639},
     publisher = {mathdoc},
     volume = {98},
     number = {4},
     year = {2015},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2015_98_4_a12/}
}