@article{Barmpalias2013KolmogorovComplexityComputably,
  author  = {G. B. Barmpalias and A. Li},
  journal = {Ann. Pure Appl. Logic},
  pages   = {1187--1200},
  title   = {Kolmogorov complexity and computably enumerable sets},
  volume  = {164},
  year    = {2013},
}