@article{Duncanin press,
author = {Duncan, D.T. and Aldstadt, J. and Whalen, J. and Melly, S.J.},
title= {Validation of walk scores and transit scores for estimating neighborhood walkability and transit availability: A small-area analysis},
year = {in press},
doi = {10.1007/s10708-011-9444-4},
journal = {GeoJournal},
}