@article{articled82c534d,
title   = {Limitations of passenger-car equivalent derivation for traffic streams with more than one truck type},
author = {Demarchi, Sérgio Henrique and Setti, José Reynaldo Anselmo},
year = {2003},
doi = {10.3141/1852-13},
journal   = {Transportation Research Record: Journal of the Transportation Research Board}
}