@article{VCHGU_2008_10_a15,
     author = {O. N. Shatnykh},
     title = {Some properties of the extended complexity of 3-dimensional manifolds},
     journal = {Vestnik Chelyabinskogo Gosudarstvennogo Universiteta. Matematika, Mekhanika, Informatika},
     pages = {114--120},
     publisher = {mathdoc},
     number = {10},
     year = {2008},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VCHGU_2008_10_a15/}
}