@InProceedings{SCH:CHI08, 
        author =   "H. Sasamoto and N. Christin and E. Hayashi", 
        title =    "Undercover: Authentication Usable in Front of Prying Eyes",
        booktitle = "Proceedings of {2008 ACM Symposium on Computer-Human Interaction (CHI'08)}", 
        address = "Florence, Italy", 
        year =     2008, 
        month =    apr, 
        pages = "183--192"
}