@InProceedings{Nguyen11SpatiotemporalTags,
  author    = {Dinh Quyen Nguyen and Christian Tominski and Heidrun Schumann and Tuan Anh Ta},
  title     = {{Visualizing Tags with Spatiotemporal References}},
  booktitle = {Proceedings of the International Conference Information Visualisation (IV)},
  year      = {2011},
  publisher = {IEEE Computer Society},
  location  = {London, UK},
  pages     = {32--39},
  doi       = {10.1109/IV.2011.43},
  url       = {https://doi.org/10.1109/IV.2011.43},
}