Which Monoids are Syntactic Monoids of omega-Languages?

Helmut Jürgensen, Gabriel Thierrin. Which Monoids are Syntactic Monoids of omega-Languages?. Elektronische Informationsverarbeitung und Kybernetik, 22(10/11):513-526, 1986.

@article{JurgensenT86,
  title = {Which Monoids are Syntactic Monoids of omega-Languages?},
  author = {Helmut Jürgensen and Gabriel Thierrin},
  year = {1986},
  researchr = {https://researchr.org/publication/JurgensenT86},
  cites = {0},
  citedby = {0},
  journal = {Elektronische Informationsverarbeitung und Kybernetik},
  volume = {22},
  number = {10/11},
  pages = {513-526},
}