Villa-García, Julio. “TP-Ellipsis With a Polarity Particle in Multiple-Complementizer Contexts in Spanish: On Topical Remnants and Focal Licensors”. Borealis – An International Journal of Hispanic Linguistics, vol. 5, no. 2, Dec. 2016, pp. 135-72, https://doi.org/10.7557/1.5.2.3781.