@article{RO_2015__49_3_569_0,
     author = {Moradi, Ahmad and Lodi, Andrea and Mehdi Hashemi, S.},
     title = {Virtual private network design over the first {Chv\'atal} closure},
     journal = {RAIRO - Operations Research - Recherche Op\'erationnelle},
     pages = {569--588},
     publisher = {EDP-Sciences},
     volume = {49},
     number = {3},
     year = {2015},
     doi = {10.1051/ro/2014056},
     mrnumber = {3349135},
     zbl = {1326.90050},
     language = {en},
     url = {http://www.numdam.org/articles/10.1051/ro/2014056/}
}