@article{predictionwithadviceofunknownnumberof,
  title = {Prediction with Advice of Unknown Number of Experts},
  author = {Alexey Chernov and Vladimir Vovk},
  year = {2014},
  eprint = {1408.2040},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1408.2040v1},
}