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1
Publicado en: Voicing the moment : improvised oral poetry and basque tradition / edited by Samuel G. Armistead and Joseba Zulaika. , Reno : Center for Basques Studies, University of Nevada Reno, [2005]., P. 209-230
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2
Publicado en: Anglo-American contributions to Basque studies , Reno : Don D. Fowler : Alma Smith, 1977, P. 43-50