The circle as a smoothly joined BR-curve on [0, 1]

Jean-Charles Fiorot, Pierre Jeannin, I. Cattiaux-Huillard. The circle as a smoothly joined BR-curve on [0, 1]. Computer Aided Geometric Design, 14(4):313-323, 1997. [doi]

@article{FiorotJC97,
  title = {The circle as a smoothly joined BR-curve on [0, 1]},
  author = {Jean-Charles Fiorot and Pierre Jeannin and I. Cattiaux-Huillard},
  year = {1997},
  doi = {10.1016/S0167-8396(96)00035-0},
  url = {http://dx.doi.org/10.1016/S0167-8396(96)00035-0},
  researchr = {https://researchr.org/publication/FiorotJC97},
  cites = {0},
  citedby = {0},
  journal = {Computer Aided Geometric Design},
  volume = {14},
  number = {4},
  pages = {313-323},
}