Piskorski, J. & Yangarber, R. (2013). Information Extraction: Past, Present and Future. In T. Poibeau, H. Saggion, J. Piskorski & R. Yangarber (ed.), Multi-source, Multilingual Information Extraction and Summarization (pp. 23-49) . Springer Berlin Heidelberg . ISBN: 978-3-642-28568-4.