@article{CHEB_2014_15_2_a11, author = {V. N. Bezverkhnii and E. S. Logacheva}, title = {Letter to the editor}, journal = {\v{C}eby\v{s}evskij sbornik}, pages = {148--150}, publisher = {mathdoc}, volume = {15}, number = {2}, year = {2014}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/CHEB_2014_15_2_a11/} }