Fernández-Olmos, Marta, Natalia Dejo-Oricain, and Jorge Rosell-Martínez. “Product Differentiation Strategy and Vertical Integration: An Application to the DOC Rioja Wine Industry”. Journal of Business Economics and Management 17, no. 5 (October 27, 2016): 796-809. Accessed April 23, 2024. https://journals.vilniustech.lt/index.php/JBEM/article/view/2269.