@article{Blondel98,
  title = {Structured Numbers: Properties of a Hierarchy of Operations on Binary Trees},
  author = {Vincent D. Blondel},
  year = {1998},
  url = {http://link.springer.de/link/service/journals/00236/bibs/8035001/80350001.htm},
  researchr = {https://researchr.org/publication/Blondel98},
  cites = {0},
  citedby = {0},
  journal = {Acta Informatica},
  volume = {35},
  number = {1},
  pages = {1-15},
}