Parga-Dans, E., R. Vecchio, A. Annunziata, P. Alonso González, and R. Otero Enríquez. “A Certification for Natural Wine? A Comparative Analysis of Consumer Drivers in Italy and Spain”. Wine Economics and Policy, vol. 12, no. 1, May 2023, pp. 23-35, doi:10.36253/wep-12890.