Carl Pomerance. Collinear Subsets of Lattice Point Sequences - An Analog of Szemerédi s Theorem. Journal of Combinatorial Theory, Series A, 28(2):140-149, 1980.
@article{Pomerance80, title = {Collinear Subsets of Lattice Point Sequences - An Analog of Szemerédi s Theorem}, author = {Carl Pomerance}, year = {1980}, researchr = {https://researchr.org/publication/Pomerance80}, cites = {0}, citedby = {0}, journal = {Journal of Combinatorial Theory, Series A}, volume = {28}, number = {2}, pages = {140-149}, }