M. R. Garey, Ronald L. Graham, David S. Johnson
Some NP-Complete Geometric Problems
STOC, 1976.
@inproceedings{STOC-1976-GareyGJ, author = "M. R. Garey and Ronald L. Graham and David S. Johnson", booktitle = "{Proceedings of the Eighth Annual ACM Symposium on Theory of Computing}", doi = "10.1145/800113.803626", pages = "10--22", publisher = "{ACM}", title = "{Some NP-Complete Geometric Problems}", year = 1976, }