Ramírez Quesada, E. “Tomás Navarro Tomás Facing the Formulation of the Phonic Disciplines: «intuitions» and Phonological Observations (1918-1946)”. Journal of Experimental Phonetics, vol. 25, Apr. 2016, pp. 297-16, https://revistes.ub.edu/index.php/experimentalphonetics/article/view/44146.