@misc{W1944603233,
  author = {Malika Charrad and Nadia Ghazzali and Véronique Boiteau and Azam Niknafs},
  title = {NbClust: An R Package for Determining the Relevant Number of Clusters in a Data Set},
  year = {2014},
  howpublished = {HAL (Le Centre pour la Communication Scientifique Directe)},
  doi = {https://doi.org/10.18637/jss.v061.i06}
}