D. BILALIS, I. KAKABOUKI, A. KARKANIS, I. Travlos, V. TRIANTAFYLLIDIS, and D. HELA, “Seed and Saponin Production of Organic Quinoa (Chenopodium quinoa Willd.) for different Tillage and Fertilization”, Not Bot Horti Agrobo, vol. 40, no. 1, pp. 42–46, May 2012.