@article{DM_1992_4_2_a5,
     author = {P. A. Golovach},
     title = {Minimal trees with a~given vertex-search number},
     journal = {Diskretnaya Matematika},
     pages = {52--60},
     publisher = {mathdoc},
     volume = {4},
     number = {2},
     year = {1992},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DM_1992_4_2_a5/}
}