@phdthesis{Kretzler2002,
  author      = {Kai Kretzler},
  title       = {Eine neue Methode zur Bestimmung der Fließeigenschaften von Sch{\"u}ttg{\"u}tern},
  type        = {doctoralthesis},
  school      = {Universit{\"a}t W{\"u}rzburg},
  year        = {2002},
}