Brown, Penelope. 1998. Children's first verbs in Tzeltal: evidence for an early verb category. Linguistics 36. 713-153.
@article{tseltal-R027,
author = {Brown, Penelope},
journal = {Linguistics},
pages = {713-153},
title = {Children's first verbs in Tzeltal: evidence for an early verb category},
volume = {36},
year = {1998}
}