Machado Rojas, Arlan, Yunier Broche Pérez, Osvaldo Norman Montenegro, María Elena de la Torre Santos, Daniel Tirado Saura, y Carolina Machado de la Torre. 2020. «Circadian Typology and Its Sleep - Wake Cycle Temporal Pattern Related in University Students». Revista Cubana De Investigaciones Biomédicas 38 (5). https://revibiomedica.sld.cu/index.php/ibi/article/view/529.