@misc{W2129066856,
  author = {Maria Halkidi and Yannis Batistakis and Michalis Vazirgiannis},
  title = {On Clustering Validation Techniques},
  year = {2001},
  howpublished = {Journal of Intelligent Information Systems},
  doi = {https://doi.org/10.1023/a:1012801612483}
}