Ruppenhofer, J., Struß, J. M., Sonntag, J., & Gindl, S. (2014). IGGSA-STEPS: Shared Task on Source and Target Extraction from Political Speeches. Journal for Language Technology and Computational Linguistics, 29(1), 33–46. https://doi.org/10.21248/jlcl.29.2014.182