LaPolla, Randy. 1994. Parallel grammaticalizations in Tibeto-Burman languages: Evidence of Sapir’s ‘Drift’. Linguistics of the Tibeto-Burman Area 17. 61-80.
@article{sinnemakizeromarking-LaPolla1994, author = {LaPolla, Randy}, journal = {Linguistics of the Tibeto-Burman Area}, number = {1}, pages = {61-80}, title = {Parallel grammaticalizations in Tibeto-Burman languages: Evidence of Sapir’s ‘Drift’}, volume = {17}, year = {1994} }