Rationality of the Möbius Function of Subword Order

Anders Björner, Christophe Reutenauer. Rationality of the Möbius Function of Subword Order. Theoretical Computer Science, 98(1):53-63, 1992.

@article{BjornerR92,
  title = {Rationality of the Möbius Function of Subword Order},
  author = {Anders Björner and Christophe Reutenauer},
  year = {1992},
  researchr = {https://researchr.org/publication/BjornerR92},
  cites = {0},
  citedby = {0},
  journal = {Theoretical Computer Science},
  volume = {98},
  number = {1},
  pages = {53-63},
}