@phdthesis{Seider2005,
  author      = {Helge Seider},
  title       = {Die Wormser Stadtverfassung im Zeitalter des Investiturstreites},
  type        = {doctoralthesis},
  pages       = {135},
  school      = {Universit{\"a}tsbibliothek Johann Christian Senckenberg},
  year        = {2005},
}