@misc{cryptoeprint:2013:173,
    author = {Ray Perlner and Daniel Smith-Tone},
    title = {On the Classification of Differential Invariants for Multivariate Post-Quantum Cryptosystems"},
    howpublished = {Cryptology ePrint Archive, Report 2013/173},
    year = {2013},
    url = {http://eprint.iacr.org/2013/173},
}