Ammann, Andreas. n.d. Expressions of necessity: Catalan, its diachrony, and a problem for grammaticalization theory. (unpublished).
@unpublished{Ammann-nd, author = {Ammann, Andreas}, title = {Expressions of necessity: Catalan, its diachrony, and a problem for grammaticalization theory}, type = {manuscript}, iso_code = {cat}, olac_field = {syntax; general_linguistics; typology}, wals_code = {ctl} }