@misc {IOPORT.70922533,
    author       = {Di Pietro, Roberto and Soriente, Claudio and Spognardi, Angelo and Tsudik, Gene},
    title        = {Collaborative authentication in unattended wsns},
    howpublished = {WISEC, 237-244 (2009).},
    year         = {2009},
    doi          = {10.1145/1514274.1514307},
    identifier   = {70922533},
}