@Article{HL04,
  author =       {Hiss, Gerhard and Lübeck, Frank},
  title =        {Some observations on products of characters of
                  finite classical groups},
  journal =      {Proceedings of \emph{Finite Groups 2003}, Gainesville
                  (FL), in honor of  J. G. Thompson's 70th birthday},
  publisher =    {de Gruyter},
  year =         "2004"
}