@article {IOPORT.05745768,
    author       = {Lei, Ming and Xiao, Yang and Vrbsky, Susan V. and Li, Chung-Chih},
    title        = {Virtual password using random linear functions for on-line services, ATM machines, and pervasive computing.},
    year         = {2008},
    journal      = {Computer Communications},
    volume       = {31},
    number       = {18},
    issn         = {0140-3664},
    pages        = {4367-4375},
    publisher    = {Elsevier, Amsterdam},
    doi          = {10.1016/j.comcom.2008.05.005},
    identifier   = {05745768},
}