@article{paperid:1045562, author = {Monabbati, Ehsan and Taghizadeh Kakhki, Hossein}, title = {On a class of subadditive duals for the uncapacitated facility location problem}, journal = {Applied Mathematics and Computation}, year = {2015}, volume = {251}, month = {January}, issn = {0096-3003}, pages = {118--131}, numpages = {13}, keywords = {Uncapacitated facility location problem، Subadditive dual، Integer programming، Exact methods، Variable fixing}, }