@article{MZM_2020_107_6_a7,
     author = {F. A. Ivlev and A. Ya. Kanel},
     title = {Estimating the {Distance} between {Two} {Bodies
}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {888--893},
     publisher = {mathdoc},
     volume = {107},
     number = {6},
     year = {2020},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2020_107_6_a7/}
}