Ukwabelana - An open-source morphological Zulu corpus Sebastian Spiegler author Andrew van der Spuy author Peter A Flach author 2010-08 text Proceedings of the 23rd International Conference on Computational Linguistics (Coling 2010) Chu-Ren Huang editor Dan Jurafsky editor Coling 2010 Organizing Committee Beijing, China conference publication spiegler-etal-2010-ukwabelana https://aclanthology.org/C10-1115/ 2010-08 1020 1028