López Sánchez D, González Arrieta A. Preliminary results on nonparametric facial occlusion detection. ADCAIJ [Internet]. 2016 Jan. 10 [cited 2024 Apr. 25];5(1):51-6. Available from: https://revistas.usal.es/cinco/index.php/2255-2863/article/view/ADCAIJ2016515161