Salaberri Muñoa, P. “Axularren Lantegian. Iturbegi Ezezaguna Geroren Lehen Kapituluaren Bilbean [At Axular’s Workshop. An Unknown Source in the Plot of the First Chapter of Gero]”. Fontes Linguae Vasconum, no. 124, Dec. 2017, pp. 251-75, doi:10.35462/flv124.2.