@article{and-sto-01-circ,
  author = {Marcus Vin{\'\i}cius A. Andrade and Jorge Stolfi},
  title = {Exact Algorithms for Circles on the Sphere},
  journal = {International Journal of Computational Geometry and Applications},
  volume = {11},
  number = {3},
  pages = {267--290},
  year = 2001,
  month = jun,
  doi = {10.1142/S021819590100050X},
  issn = {0218-1959},
  citations = {WoS/2021: 3},
  comment = {The publisher's site seems to be down, so Lattes refuses the DOI. Must try again during the week.}
}