Endre Szemerédi, William T. Trotter. A Combinatorial Distinction Between the Euclidean and Projective Planes. Eur. J. Comb., 4(4):385-394, 1983. [doi]
@article{SzemerediT83-0,
title = {A Combinatorial Distinction Between the Euclidean and Projective Planes},
author = {Endre Szemerédi and William T. Trotter},
year = {1983},
doi = {10.1016/S0195-6698(83)80036-5},
url = {http://dx.doi.org/10.1016/S0195-6698(83)80036-5},
researchr = {https://researchr.org/publication/SzemerediT83-0},
cites = {0},
citedby = {0},
journal = {Eur. J. Comb.},
volume = {4},
number = {4},
pages = {385-394},
}