Luna L. Xavier Frías Conde in the collection "O Roibén", the relevant poetical contribution of one of the founders of the Grupo Bilbao. Madrygal [Internet]. 2012 Jun. 14 [cited 2026 Jul. 10];15:77-85. Available from: https://revistas.ucm.es/index.php/MADR/article/view/39196