@article{VMUMM_2016_3_a2,
     author = {V. A. Zorich},
     title = {Ball, sphere, and all, all, all},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {16--19},
     publisher = {mathdoc},
     number = {3},
     year = {2016},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_2016_3_a2/}
}