Gallego, Ángel J., and Juan Uriagereka. “’Estar’ = ’Ser’ + X”. Borealis – An International Journal of Hispanic Linguistics 5, no. 1 (June 1, 2016): 123–156. Accessed April 27, 2024. https://septentrio.uit.no/index.php/borealis/article/view/3634.