@misc {IOPORT.70208943,
    author       = {Hino, Hideitsu and Fujimoto, Yu and Murata, Noboru},
    title        = {Item preference parameters from grouped ranking observations},
    howpublished = {PAKDD, 875-882 (2009).},
    year         = {2009},
    doi          = {10.1007/978-3-642-01307-2_91},
    identifier   = {70208943},
}