@misc {IOPORT.70596815,
    author       = {Wang, Han and Lang, Bo},
    title        = {Online ngram-enhanced topic model for Academic retrieval},
    howpublished = {ICDIM, 137-142 (2011).},
    year         = {2011},
    doi          = {10.1109/ICDIM.2011.6093316},
    identifier   = {70596815},
}