Le cylindre des langages linéaires n est pas principal

Luc Boasson, Maurice Nivat. Le cylindre des langages linéaires n est pas principal. In H. Barkhage, editor, Automata Theory and Formal Languages, 2nd GI Conference, Kaiserslautern, May 20-23, 1975. Volume 33 of Lecture Notes in Computer Science, pages 16-19, Springer, 1975.

@inproceedings{BoassonN75,
  title = {Le cylindre des langages linéaires n est pas principal},
  author = {Luc Boasson and Maurice Nivat},
  year = {1975},
  researchr = {https://researchr.org/publication/BoassonN75},
  cites = {0},
  citedby = {0},
  pages = {16-19},
  booktitle = {Automata Theory and Formal Languages, 2nd GI Conference, Kaiserslautern, May 20-23, 1975},
  editor = {H. Barkhage},
  volume = {33},
  series = {Lecture Notes in Computer Science},
  publisher = {Springer},
  isbn = {3-540-07407-4},
}