@article{SM_2005_196_6_a3,
     author = {A. O. Ivanov and I. M. Nikonov and A. A. Tuzhilin},
     title = {Sets admitting connection by graphs of finite length},
     journal = {Sbornik. Mathematics},
     pages = {845--884},
     year = {2005},
     volume = {196},
     number = {6},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_2005_196_6_a3/}
}