Autebert77'

BibTeX

@article{DBLP:journals/mst/Autebert77,
  author    = {Jean-Michel Autebert},
  title     = {Non-Principalit{\'e} du Cylindre des Langages {\`a}
               Compteur},
  journal   = {Mathematical Systems Theory},
  volume    = {11},
  year      = {1977},
  pages     = {157-167},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}