?url_ver=Z39.88-2004&rft_id=10.1016%2Fj.healthplace.2013.10.005&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Villanueva%2C+Karen&rft.aulast=Villanueva&rft.aufirst=Karen&rft.date=2014&rft.volume=25&rft.atitle=The+impact+of+neighborhood+walkability+on+walking%3A+Does+it+differ+across+adult+life+stage+and+does+neighborhood+buffer+size+matter%3F&rft.issn=1353-8292&rft.title=Health+and+Place&rft.genre=article