ABEYWICKRAMA, T.; CHEEMA, M. A.; STORANDT, S. Hierarchical Graph Traversal for Aggregate k Nearest Neighbors Search in Road Networks. Proceedings of the International Conference on Automated Planning and Scheduling, [S. l.], v. 30, n. 1, p. 2-10, 2020. Disponível em: https://ojs.aaai.org/index.php/ICAPS/article/view/6639. Acesso em: 24 feb. 2021.