@article{IVM_2020_6_a12,
     author = {P. I. Troshin},
     title = {Koch fractal in {non-Euclidean} geometries},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {99--103},
     publisher = {mathdoc},
     number = {6},
     year = {2020},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_2020_6_a12/}
}