@article{ref1,
title="The uniform line density has maximum crossing factor",
journal="Transportation research part B: methodological",
year="1981",
author="Vaughan, Rodney",
volume="15",
number="1",
pages="17-19",
abstract="If straight lines of infinite length are placed at random on the plane such that the relative numbers in a range of directions is described by a continuous function then it is proved that the maximum crossings per unit area for a fixed length of line per unit area occurs when the lines are provided equally in each direction.<p /><p>Language: en</p>",
language="en",
issn="0191-2615",
doi="10.1016/0191-2615(81)90043-6",
url="http://dx.doi.org/10.1016/0191-2615(81)90043-6"
}