@phdthesis{Grahl2002,
  author      = {J{\"u}rgen Grahl},
  title       = {Blochsches Prinzip, L{\"u}ckenreihen und Semidualit{\"a}t},
  type        = {doctoralthesis},
  school      = {Universit{\"a}t W{\"u}rzburg},
  year        = {2002},
}