@article{ref1,
title="Track loading fundamentals--1 introduction: track and wheel loading",
journal="Railway gazette",
year="1957",
author="Clarke, C. W.",
volume="106",
number="",
pages="45-48",
abstract="This is the first article in a series describing how maximum axle loads can be determined for permanent way and conversely, how track can be designed and/or improved to carry maximum axle loads. This first article examines track and wheel loading, track stresses, and loading indices and track constants.<p />",
language="",
issn="",
doi="",
url="http://dx.doi.org/"
}