@phdthesis{Ritter2005,
  author      = {Harald Ritter},
  title       = {Aufz{\"a}hlung von kurzen Gittervektoren in allgemeiner Norm},
  type        = {doctoralthesis},
  school      = {Universit{\"a}tsbibliothek Johann Christian Senckenberg},
  url       = {http://www.mi.informatik.uni-frankfurt.de/research/phdtheses.html},
  year        = {2005},
}