@article{Zerafat08,
  author = {Zerafat Angiz Langroudi, Madjid and Jandaghi, Gholamreza and Ben Mustafa, Adli},
  title = {Validity Examination of EFQM’s Results by DEA Models},
  journal = {Revista de M\'etodos Cuantitativos para la Econom\'{\i}a y la Empresa} 
  ISSN = {1886-516X}, 
  number = {5},
  year = {2008},
  pages = {17--28}, 
  URL = {http://www.upo.es/RevMetCuant/art17.pdf}
}