@article{JMLR:v22:20-1081,
  author  = {László Györfi and Roi Weiss},
  title   = {Universal consistency and rates of convergence of multiclass prototype algorithms in metric spaces},
  journal = {Journal of Machine Learning Research},
  year    = {2021},
  volume  = {22},
  number  = {151},
  pages   = {1--25},
  url     = {http://jmlr.org/papers/v22/20-1081.html}
}