@article{Panti09,
  title = {A General Lagrange Theorem},
  author = {Giovanni Panti},
  year = {2009},
  url = {http://www.jstor.org/stable/27642667},
  researchr = {https://researchr.org/publication/Panti09},
  cites = {0},
  citedby = {0},
  journal = {The American Mathematical Monthly},
  volume = {116},
  number = {1},
  pages = {70-74},
}