Fernández-Olmos, M., Rosell Martínez, J., & Espitia-Escuer, M. (2009). The relationship between product quality and transaction costs with vertical coordination in DOC [Qualified Designation of Origin] Rioja winegrape industry. Spanish Journal of Agricultural Research, 7(2), 281-293. https://doi.org/10.5424/sjar/2009072-419