@article{DM_1993_5_2_a0,
     author = {E. N. Gordeev and O. G. Tarastsov},
     title = {The {Steiner} problem: {A~survey}},
     journal = {Diskretnaya Matematika},
     pages = {3--28},
     publisher = {mathdoc},
     volume = {5},
     number = {2},
     year = {1993},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DM_1993_5_2_a0/}
}