@article{SM_1994_77_2_a9,
     author = {A. O. Ivanov and I. V. Ptitsyna and A. A. Tuzhilin},
     title = {Classification of closed minimal networks on flat two-dimensional tori},
     journal = {Sbornik. Mathematics},
     pages = {391--425},
     publisher = {mathdoc},
     volume = {77},
     number = {2},
     year = {1994},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1994_77_2_a9/}
}