González-Martín, A., y D. I. Toja. «Seasonality and Cyclic Tendency of Mortality in a Pyrenean Population». Pirineos 135 (junio 30, 1990): 39–38. Accedido abril 30, 2024. https://pirineos.revistas.csic.es/index.php/pirineos/article/view/209.