@article{approximatingkellcenterclusteringfor,
  title = {Approximating $(k,\ell)$-center clustering for curves},
  author = {Buchin Kevin and Driemel Anne and Gudmundsson Joachim and Horton Michael and Kostitsyna Irina and Löffler Maarten and Struijs Martijn},
  year = {2018},
  eprint = {1805.01547},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1805.01547v2},
}