@misc{cryptoeprint:2002:195,
    author = {H.D.L. Hollmann, J.H.v. Lint, L. Tolhuizen, P. Tuyls},
    title = {An addition to the paper: A polarisation based visual crypto system and its secret sharing schemes},
    howpublished = {Cryptology ePrint Archive, Report 2002/195},
    year = {2002},
    url = {http://eprint.iacr.org/2002/195},
}