Characterisation and evaluation of species of the Boraginaceae family as source of gamma-linolenic acid for Mediterranean conditions - De Haro, A; del Rio, M; Alcaide, B; Rapoport, H; Cabrera, A; Craker, LE; Simon, JE; Jatisatienr, A; Lewinsohn, E (Future for Medicinal and Aromatic Plants, 2004)