@article{SEMR_2020_17_a76,
     author = {O. V. Borodin and A. O. Ivanova},
     title = {Soft 3-stars in sparse plane graphs},
     journal = {Sibirskie \`elektronnye matemati\v{c}eskie izvesti\^a},
     pages = {1863--1868},
     publisher = {mathdoc},
     volume = {17},
     year = {2020},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/SEMR_2020_17_a76/}
}