Relationship between the “Celestial Memory” of Pythagoras and “The corporal prison” of Rubén Darío in songs of life and hope. Rev. Lengua y Literatura [Internet]. 2019 Jan. 13 [cited 2025 Aug. 13];5(1):14-8. Available from: https://revistas.unan.edu.ni/index.php/RLL/article/view/2742