Dourado Fernández, Rocío. 2012. “About Some Denominations for the ‘umbilicus Rupestris’ in the Galician-Speaking Territory: An Analysis Based on Data from the ALGa (I)”. Madrygal. Revista de Estudios Gallegos 15 (June): 35-44. https://doi.org/10.5209/rev_MADR.2012.v15.39192.