Segundo Fernández, Eugenia San. 2017. «Forensic Speaker Comparison of Spanish Twins and Non-Twin Siblings : A Phonetic-Acoustic Analysis of Formant Trajectories in Vocalic Sequences, Glottal Source Parameters and Cepstral Characteristics». Language and Law Linguagem E Direito 1 (2). Porto, Portugal. https://ojstest.xyz/ojsletrasX/index.php/LLLD/article/view/2437.