@article{ZNSL_1998_252_a1,
     author = {V. A. Zalgaller},
     title = {A separating spherical belt with maximal radius ratio},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {13--20},
     year = {1998},
     volume = {252},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1998_252_a1/}
}