BibTex format
@article{Trompet:2009:10.3141/2111-20,
author = {Trompet, M and Anderson, RJ and Graham, DJ},
doi = {10.3141/2111-20},
journal = {TRANSPORTATION RESEARCH RECORD},
pages = {177--184},
title = {Variability in Comparable Performance of Urban Bus Operations},
url = {http://dx.doi.org/10.3141/2111-20},
year = {2009}
}