A. Voinea, V.-C. Vasilenco, R.-A. Tudoran, and A. Tănase, “Human Emotion Recognition Based on Voice Analysis”, The Annals of “Dunarea de Jos“ University of Galati. Fascicle III, Electrotechnics, Electronics, Automatic Control, Informatics, vol. 41, no. 2, pp. 13-19, Feb. 2019.