@article{INTO_2023_220_a9, author = {I. V. Polikanova}, title = {Criteria for the straightness of a curve}, journal = {Itogi nauki i tehniki. Sovremenna\^a matematika i e\"e prilo\v{z}eni\^a. Temati\v{c}eskie obzory}, pages = {86--98}, publisher = {mathdoc}, volume = {220}, year = {2023}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/INTO_2023_220_a9/} }