@article{Barmpalias2012TracingDominationTuring,
  year      = 2012,
  publisher = {Elsevier},
  volume    = {163},
  number    = {5},
  pages     = {500--505},
  author    = {G. Barmpalias},
  title     = {Tracing and domination in the Turing degrees},
  journal   = {Ann. Pure Appl. Logic},
}