1. Maxwell, M., Hughes, B.: Frontiers in linguistic annotation for lower-density languages. In: Proceedings of the Workshop on Frontiers in Linguistically Annotated Corpora 2006. Association for Computational Linguistics, pp. 29–37,
http://www.aclweb.org/anthology/W06-0605
2. Reiman, W.: Basic oral language documentation, Presentation at the First International Conference on Language Documentation and Conservation (2009)
3. Bee, D.: Usarufa: a descriptive grammar. In: McKaughan, H. (ed.) The Languages of the Eastern Family of the East New Guinea Highland Stock, pp. 324–400. University of Washington Press (1973)
4. Woodbury, A.C.: Defining documentary linguistics. In: Austin, P. (ed.) Language Documentation and Description, vol. 1, pp. 35–51. SOAS, London (2003)
5. Johnson, H., Aristar Dry, H.: OLAC discourse type vocabulary (2002),
http://www.language-archives.org/REC/discourse.html