Torralbo Rodríguez M, Vallejo Ruiz M, Fernández Cano A, Rico Romero L. Methodological analysis of the spanish production on doctoral thesis in mathematical education (1976-1998). RELIEVE [Internet]. 2014 Nov. 23 [cited 2024 May 18];10(1). Available from: https://revistaseug.ugr.es/index.php/RELIEVE/article/view/17172