@incollection{Barmpalias2007KTrivialClosed,
  publisher = {Springer},
  pages     = {135--145},
  author    = {G. Barmpalias and D. Cenzer and J. B. Remmel and R. Weber},
  title     = {K-Trivial Closed Sets and Continuous Functions},
  booktitle = {Lect. Notes Comput. Sci.},
  year      = {2007},
}