@article{CHEB_2021_22_4_a7,
     author = {A. N. Kormacheva and N. N. Dobrovol'skii and I. Yu. Rebrova and N. M. Dobrovol'skii},
     title = {On the hyperbolic parameter of a two-dimensional lattice of comparisons},
     journal = {\v{C}eby\v{s}evskij sbornik},
     pages = {168--182},
     publisher = {mathdoc},
     volume = {22},
     number = {4},
     year = {2021},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/CHEB_2021_22_4_a7/}
}