@article{JMLR:v16:bernstein15a,
  author  = {Andrey Bernstein and Nahum Shimkin},
  title   = {Response-Based Approachability with Applications to Generalized No-Regret Problems},
  journal = {Journal of Machine Learning Research},
  year    = {2015},
  volume  = {16},
  number  = {24},
  pages   = {747--773},
  url     = {http://jmlr.org/papers/v16/bernstein15a.html}
}