?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Herbert+S.%2C+Wilf&rft.aulast=Herbert+S.&rft.aufirst=Wilf&rft.date=6+March+2008&rft.atitle=Algorithms+and+Complexity&rft.title=Internet+Edition%2C+Summer%2C+1994&rft.genre=article