Valdés Díaz M, Rodríguez Testal JF. Subjective well-being in old age: Analysis using brief time series. Apunt. Psic. [Internet]. 2003 Mar. 28 [cited 2026 Oct. 26];21(1):51-70. Available from: https://apuntesdepsicologia.es/index.php/revista/article/view/1387