Tench, Paul. 2007. Illustrations of the IPA: Tera. Journal of the International Phonetic Association 37. 227–234. Cambridge University Press.
@article{ttr_tench2007, author = {Tench, Paul}, journal = {Journal of the International Phonetic Association}, number = {2}, pages = {227–234}, publisher = {Cambridge University Press}, title = {Illustrations of the IPA: Tera}, volume = {37}, year = {2007} }