Cabeza, Laura, y Matthias Scantamburlo. Dual Voting and Second-Order Effects in the Quasi-Simultaneous 2019 Spanish Regional and National Elections. Revista Española de Ciencia Política, no. 55 (marzo 25, 2021): 13-35. Accedido mayo 7, 2021. https://recyt.fecyt.es/index.php/recp/article/view/84141.