@article{VMUMM_1984_5_a4,
     author = {G. G. Kosheleva},
     title = {Properties of the space $(0,2\pi)$},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {20--25},
     publisher = {mathdoc},
     number = {5},
     year = {1984},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1984_5_a4/}
}