Thompson, Chad. 1996. The Na-Dene Middle Voice: An Impersonal Source of the D-Element. International Journal of American Linguistics 62.4. 351-378.
@article{jacquesestimative-thompson96middle, author = {Thompson, Chad}, journal = {International Journal of American Linguistics}, pages = {351-378}, title = {The Na-Dene Middle Voice: An Impersonal Source of the D-Element}, volume = {62.4}, year = {1996} }