@article{CMFD_2013_51_a0,
     author = {A. G. Bannikova and D. P. Ilyutko and I. M. Nikonov},
     title = {The length of an extremal network in a~normed space: {Maxwell} formula},
     journal = {Contemporary Mathematics. Fundamental Directions},
     pages = {5--20},
     publisher = {mathdoc},
     volume = {51},
     year = {2013},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/CMFD_2013_51_a0/}
}