On the Variable Hierarchy of the Modal µ-Calculus

Dietmar Berwanger, Erich Grädel, Giacomo Lenzi. On the Variable Hierarchy of the Modal µ-Calculus. In Julian C. Bradfield, editor, Computer Science Logic, 16th International Workshop, CSL 2002, 11th Annual Conference of the EACSL, Edinburgh, Scotland, UK, September 22-25, 2002, Proceedings. Volume 2471 of Lecture Notes in Computer Science, pages 352-366, Springer, 2002. [doi]

@inproceedings{BerwangerGL02,
  title = {On the Variable Hierarchy of the Modal µ-Calculus},
  author = {Dietmar Berwanger and Erich Grädel and Giacomo Lenzi},
  year = {2002},
  url = {http://link.springer.de/link/service/series/0558/bibs/2471/24710352.htm},
  researchr = {https://researchr.org/publication/BerwangerGL02},
  cites = {0},
  citedby = {0},
  pages = {352-366},
  booktitle = {Computer Science Logic, 16th International Workshop, CSL 2002, 11th Annual Conference of the EACSL, Edinburgh, Scotland, UK, September 22-25, 2002, Proceedings},
  editor = {Julian C. Bradfield},
  volume = {2471},
  series = {Lecture Notes in Computer Science},
  publisher = {Springer},
  isbn = {3-540-44240-5},
}