@article{SM_2011_202_6_a3,
     author = {A. B. Kupavskii},
     title = {On the colouring of spheres embedded in~$\mathbb R^n$},
     journal = {Sbornik. Mathematics},
     pages = {859--886},
     publisher = {mathdoc},
     volume = {202},
     number = {6},
     year = {2011},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_2011_202_6_a3/}
}