@article{connectednessofgraphsanditsapplication,
  title = {Connectedness of graphs and its application to connected matroids through covering-based rough sets},
  author = {Aiping Huang and William Zhu},
  year = {2013},
  eprint = {1312.4234},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1312.4234v3},
}