Euclidean Ramsey Theorems I

@article{Erds1973EuclideanRT,
  title={Euclidean Ramsey Theorems I},
  author={Paul Erd{\"o}s and Ronald L. Graham and P. Montgomery and Bruce Rothschild and Joel H. Spencer and Ernst G. Straus},
  journal={J. Comb. Theory, Ser. A},
  year={1973},
  volume={14},
  pages={341-363}
}