Proulx, Paul. 2005. Initial change in Blackfoot. Calgary Papers in Linguistics 25. 1-26.
@article{jacquesestimative-proulx05initialbf,
author = {Proulx, Paul},
journal = {Calgary Papers in Linguistics},
pages = {1-26},
title = {Initial change in Blackfoot},
volume = {25},
year = {2005}
}