@article{DA_2008_15_3_a4,
     author = {T. V. Levanova and A. S. Fedorenko},
     title = {Variable neighborhood search for two-stage facility location problem},
     journal = {Diskretnyj analiz i issledovanie operacij},
     pages = {43--57},
     publisher = {mathdoc},
     volume = {15},
     number = {3},
     year = {2008},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DA_2008_15_3_a4/}
}