@article{RO_2019__53_2_505_0,
     author = {Roboredo, Marcos Costa and Pessoa, Artur Alves and Aizemberg, Luiz},
     title = {An exact approach for the r-interdiction median problem with fortification},
     journal = {RAIRO - Operations Research - Recherche Op\'erationnelle},
     pages = {505--516},
     publisher = {EDP-Sciences},
     volume = {53},
     number = {2},
     year = {2019},
     doi = {10.1051/ro/2017060},
     mrnumber = {3947644},
     zbl = {1423.90149},
     language = {en},
     url = {http://archive.numdam.org/articles/10.1051/ro/2017060/}
}