Exploring the potential of wild food resources in the Mediterranean region: natural yield and gathering pressure of the wild asparagus (Asparagus acutifolius L.) - Molina Simón, María; Pardo de Santayana Gómez de Olea, Manuel; García-Barros Saura, Enrique; Aceituno Mata, Laura; Morales Corts, Remedios; Tardío Pato, F Javier (Spanish Journal Of Agricultural Research, 2012)