@mastersthesis{Ciroku2019,
  author      = {Fiorela Ciroku},
  title       = {Implementation of concept contraction in the Description Logic EL},
  type        = {masterthesis},
  pages       = {99},
  school      = {Universit{\"a}t Koblenz, Universit{\"a}tsbibliothek},
  year        = {2019},
}