@article{VTGU_2015_4_a1,
     author = {S. P. Gulko and A. V. Titova},
     title = {On classification of spaces of continuous $S^1$-valued functions on polihydrons},
     journal = {Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mehanika},
     pages = {15--20},
     publisher = {mathdoc},
     number = {4},
     year = {2015},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VTGU_2015_4_a1/}
}