Linguistics main office services are available in person on M, W, and F from 8 to 4 p.m. and T, Th from 9 to 4 p.m. (lunch break 12 to 1). Please contact linguw@uw.edu for more information.
Fundamental and gradient differences in language development
Julia Herschensohn. "Fundamental and Gradient Differences in Language Development." Studies in Second Language Acquisition 31 (2009): 259-289.