@article{UFA_2019_11_4_a0,
     author = {N. P. Volchkova and Vit. V. Volchkov},
     title = {A one-radius theorem on a sphere with pricked point},
     journal = {Ufa mathematical journal},
     pages = {3--12},
     publisher = {mathdoc},
     volume = {11},
     number = {4},
     year = {2019},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/UFA_2019_11_4_a0/}
}