BibTex format
@article{Trompet:2011:10.3141/2216-04,
author = {Trompet, M and Liu, X and Graham, DJ},
doi = {10.3141/2216-04},
journal = {TRANSPORTATION RESEARCH RECORD},
pages = {33--41},
title = {Development of Key Performance Indicator to Compare Regularity of Service Between Urban Bus Operators},
url = {http://dx.doi.org/10.3141/2216-04},
year = {2011}
}