@article{MZM_1994_56_2_a5,
     author = {A. V. Pogorelov},
     title = {Imbedding a {\textquotedblleft}soap bubble{\textquotedblright} into a tetrahedron},
     journal = {Matemati\v{c}eskie zametki},
     pages = {90--93},
     year = {1994},
     volume = {56},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1994_56_2_a5/}
}