@misc{cryptoeprint:2009:277,
    author = {Ulrich Rührmair and Jan Sölter and Frank Sehnke},
    title = {On the Foundations of Physical Unclonable Functions},
    howpublished = {Cryptology ePrint Archive, Report 2009/277},
    year = {2009},
    url = {http://eprint.iacr.org/2009/277},
}