@phdthesis{Luelf2004,
  author      = {Helgard L{\"u}lf},
  title       = {PTCA - K{\"o}nigsweg oder Irrweg in der Behandlung der koronaren Herzerkrankung?},
  type        = {doctoralthesis},
  school      = {Universit{\"a}t W{\"u}rzburg},
  year        = {2004},
}