@article{Barmpalias2009KTrivialityClosed,
  year      = 2009,
  publisher = {Oxford Univ. Press},
  volume    = {19},
  number    = {1},
  pages     = {3--16},
  author    = {G. Barmpalias and D. Cenzer and J. B. Remmel and R. Weber},
  title     = {K-Triviality of Closed Sets and Continuous Functions},
  journal   = {J. Log. Comput.},
}