@InProceedings{kapadia:know,
  author = {Apu Kapadia and Geetanjali Sampemane and Roy H. Campbell},
  title = "{{KNOW} why your access was denied: Regulating feedback for usable security}",
  booktitle = {Proceedings of the ACM Conference on Computers and Communication Security (CCS)},
  year = {2004},
  address = {Washington, DC},
  doi = {10.1145/1030083.1030092},
  pages = {52--61},
  month = oct
}