@inproceedings{curtin2013tree,
  title={Tree-Independent Dual-Tree Algorithms},
  author={Curtin, Ryan R. and March, William B. and Ram, Parikshit and Anderson,
David V. and Gray, Alexander G. and Isbell Jr., Charles L.},
  booktitle={Proceedings of The 30th International Conference on Machine
Learning (ICML '13)},
  pages={1435--1443},
  year={2013}
}