@article{IVM_1970_5_a8,
     author = {\`E. A. Loginov},
     title = {A~problem on the thinnest spherical shell that contains given points},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {57--61},
     publisher = {mathdoc},
     number = {5},
     year = {1970},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1970_5_a8/}
}