János Pach, Rom Pinchasi, Micha Sharir. Solution of Scott s Problem on the Number of Directions Determined by a Point Set in 3-Space. Discrete & Computational Geometry, 38(2):399-441, 2007. [doi]
@article{PachPS07,
title = {Solution of Scott s Problem on the Number of Directions Determined by a Point Set in 3-Space},
author = {János Pach and Rom Pinchasi and Micha Sharir},
year = {2007},
doi = {10.1007/s00454-007-1344-5},
url = {http://dx.doi.org/10.1007/s00454-007-1344-5},
researchr = {https://researchr.org/publication/PachPS07},
cites = {0},
citedby = {0},
journal = {Discrete & Computational Geometry},
volume = {38},
number = {2},
pages = {399-441},
}