Ibarra, O. 1994. Ultzamako euskararen azterketa.
@misc{Ibarra-1994,
author = {Ibarra, O.},
school = {University of the Basque Country, Vitoria-Gasteiz},
title = {Ultzamako euskararen azterketa},
year = {1994},
iso_code = {eus},
olac_field = {general_linguistics; phonology; phonetics; typology},
wals_code = {bqi; bqn}
}