Busterri (-)
(with) definite article: BusterriaName in Bizkaia (Biscay); Not encountered as such in dictionaries; NB¹: ➺ Buztarri, and Ustarri; NB²: ➺ Kate.
Barrenechea (Barrenetxea), (Jose) Mariano: Alboka: entorno folklórico (Colaboración de P. Jorge De Riezu), Bilbao, 1976, p.167.