@Article{BierFrej07,
author = {Michel Bierlaire and Emma Frejinger },
title = {Route choice modeling with network-free data},
journal = {Transportation Research Part C: Emerging Technologies},
volume = {16},
number = {2},
pages = {187-198},
doi = {10.1016/j.trc.2007.07.007},
year = {2008}
}