?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=CHESHER&rft.aufirst=A&rft.au=CHESHER%2C+A&rft.atitle=IMPROVING+THE+EFFICIENCY+OF+PROBIT+ESTIMATORS&rft.volume=66&rft.title=REVIEW+OF+ECONOMICS+AND+STATISTICS&rft.pages=523-527&rft.date=1+January+1984&rft.issn=0034-6535&rft.issue=3&rft.genre=article