1.		How access transport mode to a World Heritage City affects visitors' experienced quality / Juan Carlos Martin [et al.] Resp- Sec.: Martín, Juan Carlos Marrero-Rodríguez, J. Rosa Moreira, Pedro Román, Concepción Santana, Agustín
2.		There is no fuzziness when it comes to measuring service quality in national parks / Melville Saayman, Juan Carlos Martín and Concepción Román Autor: Saayman, Melville Coautor: ; Martín, Juan Carlos Román, Concepción