@article{applicationsofrepeatdegreeoncoveringsof,
  title = {Applications of repeat degree on coverings of neighborhoods},
  author = {Hua Yao and William Zhu},
  year = {2013},
  eprint = {1307.2704},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1307.2704v1},
}