@article{TIMB_2007_15_2_a5,
     author = {V. V. Lepin},
     title = {Algorithms for solution $k${-Star} {Hub} {Problem} for trees and series-parallel graphs},
     journal = {Trudy Instituta matematiki},
     pages = {48--57},
     publisher = {mathdoc},
     volume = {15},
     number = {2},
     year = {2007},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TIMB_2007_15_2_a5/}
}