Auñamendi Eusko EntziklopediaFund Bernardo Estornés Lasa

To quote this article:

Estornés Zubizarreta, Idoia; Asiron Sáez, Joseba. Biurrun-Olcoz. Auñamendi Encyclopedia [on line], 2020. [Date of consultation: May 26 2020]. Available in: http://aunamendi.eusko-ikaskuntza.eus/en/biurrun-olcoz/ar-14474/