Alonso, O., Berberich, K., Bedathur, S., & Weikum, G. (2010). Time-based Exploration of News Archives. In HCIR 2010 (pp. 12-15). s.l.: Microsoft Research. Retrieved from http://research.microsoft.com/en-us/um/people/ryenw/hcir2010/docs/papers/Alonso_fp29.pdf.