?url_ver=Z39.88-2004&rft_id=10.1017%2FS026996480999026X&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=Durante&rft.aufirst=Fabrizio&rft.au=Durante%2C+Fabrizio&rft.issue=02&rft.pages=263-278&rft.volume=24&rft.date=2010&rft.title=Probability+in+the+Engineering+and+Informational+Sciences&rft.atitle=Aging+functions+and+multivariate+notions+of+NBU+and+IFR&rft.genre=article