@inproceedings{paperid:1024983, author = {Naji Azimi, Zahra and Laura Galli and Paolo Toth}, title = {An Electro magnetism based Metaheuristic for the unicost Set Covering Problem}, booktitle = {INFORMS 2008}, year = {2008}, location = {washington DC, USA}, keywords = {Set Covering Problem; Electromagnetism Metaheuristic}, }