Head89'

BibTeX

@article{DBLP:journals/ipl/Head89,
  author    = {Tom Head},
  title     = {Deciding the Immutability of Regular Codes and Languages
               Under Finite Transductions},
  journal   = {Inf. Process. Lett.},
  volume    = {31},
  number    = {5},
  year      = {1989},
  pages     = {239-241},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}