@article{Nuviala:58519,
      author        = "Nuviala, A. and Grao-Cruces, A. and Tamayo, J.A. and
                       Nuviala, R. and Álvarez, J. and Fernández-Martínez, A.",
      title         = "{Design and analysis of the valuation questionnaire of
                       sports services (EPOD 2) (Diseño y análisis del
                       cuestionario de valoración de servicios deportivos
                       (EPOD2))}",
      year          = "2013",
}