@INPROCEEDINGS{BuscherElst09_displayTime,
  author = {Georg Buscher and Ludger van Elst and Andreas Dengel},
  title = {Segment-level display time as implicit feedback: a comparison to
	eye tracking},
  booktitle = {SIGIR '09: Proceedings of the 32nd international ACM SIGIR conference
	on Research and development in information retrieval},
  year = {2009},
  pages = {67--74},
  address = {New York, NY, USA},
  publisher = {ACM},
  doi = {http://doi.acm.org/10.1145/1571941.1571955},
  isbn = {978-1-60558-483-6},
  location = {Boston, MA, USA},
}