@article{SEMR_2005_2_a26,
     author = {O. N. Shatnykh},
     title = {The extended complexity of three-manifolds},
     journal = {Sibirskie \`elektronnye matemati\v{c}eskie izvesti\^a},
     pages = {194--195},
     publisher = {mathdoc},
     volume = {2},
     year = {2005},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SEMR_2005_2_a26/}
}