@article{ref1,
title="Track loading fundamentals--2 determination of rail section",
journal="Railway gazette",
year="1957",
author="Clarke, C. W.",
volume="106",
number="",
pages="103-107",
abstract="Various factors affecting rail stress are examined. The contribution of train speed, traction, and wheel spacing in producing rail stress are considered. Rail lift and sleeper spacing are also discussed in relation to rail stress.<p />",
language="",
issn="",
doi="",
url="http://dx.doi.org/"
}