@article{INTO_2021_194_a6,
     author = {O. N. Biryukov},
     title = {Twists on flat knot diagrams},
     journal = {Itogi nauki i tehniki. Sovremenna\^a matematika i e\"e prilo\v{z}eni\^a. Temati\v{c}eskie obzory},
     pages = {71--77},
     publisher = {mathdoc},
     volume = {194},
     year = {2021},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/INTO_2021_194_a6/}
}