@article{INTO_2020_175_a4,
     author = {A. H. Galstyan},
     title = {The {Fermat--Steiner} problem in the space of compact subsets of the {Euclidean} plane},
     journal = {Itogi nauki i tehniki. Sovremenna\^a matematika i e\"e prilo\v{z}eni\^a. Temati\v{c}eskie obzory},
     pages = {44--55},
     publisher = {mathdoc},
     volume = {175},
     year = {2020},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/INTO_2020_175_a4/}
}