1. The complexity of finding fixed-radius near neighbors;Bentley;Inform. Process. Lett.,1977
2. Computational Geometry: Algorithms and Applications;de Berg,2010
3. Unit disk graph recognition is NP-hard;Breu;Comput. Geom.,1998
4. Unit disk graphs;Clark;Discrete Math.,1990
5. Electrical flows, Laplacian systems, and faster approximation of maximum flow in undirected graphs;Christiano,2011