@article{Barmpalias2012RandomnessNotionsPartial,
  year      = 2012,
  publisher = {Springer},
  volume    = {191},
  number    = {2},
  pages     = {791--816},
  author    = {G. Barmpalias and J. S. Miller and A. Nies},
  title     = {Randomness notions and partial relativization},
  journal   = {Israel J. Math.},
}