van Driem, George. 1990. The Fall and Rise of the Phoneme r in Himalayan Languages. Bulletin of the School of Oriental and African Studies 53. 83-86.
@article{jacquesestimative-driem90r, author = {van Driem, George}, journal = {Bulletin of the School of Oriental and African Studies}, number = {1}, pages = {83-86}, title = {The Fall and Rise of the Phoneme r in Himalayan Languages}, volume = {53}, year = {1990} }