Empty Alternation

Klaus-Jörn Lange, Klaus Reinhardt. Empty Alternation. In Igor Prívara, Branislav Rovan, Peter Ruzicka, editors, Mathematical Foundations of Computer Science 1994, 19th International Symposium, MFCS 94, Kosice, Slovakia, August 22 - 26, 1994, Proceedings. Volume 841 of Lecture Notes in Computer Science, pages 494-503, Springer, 1994.

@inproceedings{LangeR94,
  title = {Empty Alternation},
  author = {Klaus-Jörn Lange and Klaus Reinhardt},
  year = {1994},
  researchr = {https://researchr.org/publication/LangeR94},
  cites = {0},
  citedby = {0},
  pages = {494-503},
  booktitle = {Mathematical Foundations of Computer Science 1994, 19th International Symposium, MFCS 94, Kosice, Slovakia, August 22 - 26, 1994, Proceedings},
  editor = {Igor Prívara and Branislav Rovan and Peter Ruzicka},
  volume = {841},
  series = {Lecture Notes in Computer Science},
  publisher = {Springer},
  isbn = {3-540-58338-6},
}