@article{antcolonyoptimizationandhypergraph,
  title = {Ant Colony Optimization and Hypergraph Covering Problems},
  author = {Ankit Pat and Ashish Ranjan Hota},
  year = {2011},
  eprint = {1105.2894},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1105.2894v2},
}