“Circadian rhythm in Leu-beta-naphthylamide hydrolysing activity in selected photoneuroendocrine areas of adult male rats” (1991) Revista Española de Fisiología, 47(4), pp. 167–172. Available at: https://revistas.unav.edu/index.php/ref/article/view/46356 (Accessed: 7 July 2025).