@article{Luan2008,
  author = {Qing Luan and Steven Drucker and Johannes Kopf and Ying-Qing Xu and Michael F. Cohen},
  title = {Annotating Gigapixel Images},
  journal = {ACM Symposium on User Interface Software and Technology (UIST)},
  pages = {33--36},
  year = {2008},
}