?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=S.&rft.au=Lee%2C+S.&rft.aulast=Lee&rft.issue=5&rft.issn=0266-4666&rft.date=October+2008&rft.title=Econometric+Theory&rft.volume=24&rft.atitle=Estimating+panel+data+duration+models+with+censored+data&rft.pages=1254-1276&rft.genre=article