@misc {IOPORT.70099417,
    author       = {Liberti, Leo and Raimondi, Franco},
    title        = {The secret santa problem},
    howpublished = {AAIM, 271-279 (2008).},
    year         = {2008},
    doi          = {10.1007/978-3-540-68880-8_26},
    identifier   = {70099417},
}