@article{JMLR:v15:balcan14a,
  author  = {Maria-Florina Balcan and Yingyu Liang and Pramod Gupta},
  title   = {Robust Hierarchical Clustering},
  journal = {Journal of Machine Learning Research},
  year    = {2014},
  volume  = {15},
  number  = {118},
  pages   = {4011--4051},
  url     = {http://jmlr.org/papers/v15/balcan14a.html}
}