@article{Carr2011,
author = {Carr, L.J. and Dunsiger, S.I. and Marcus, B.H.},
title= {Validation of Walk Score for estimating access to walkable amenities},
year = {2011},
doi = {10.1136/bjsm.2009.069609},
journal = {British Journal of Sports Medicine},
volume = {45},
number = {14},
pages = {1144--1148},
}