@phdthesis{Gulan2012,
  author      = {Stefan Gulan},
  title       = {On the Relative Descriptional Complexity of Regular Expressions and Finite Automata},
  type        = {doctoralthesis},
  school      = {Universit{\"a}t Trier},
  doi       = {10.25353/ubtr-xxxx-2bee-76e9},
  year        = {2012},
}