@article{oai:cuc.repo.nii.ac.jp:00005176,
 author = {橋本, 隆子 and HASHIMOTO, Takako},
 issue = {2},
 journal = {千葉商大紀要},
 month = {Mar},
 pages = {181--196},
 title = {Topic Extraction from Two Hundred Million Tweets related to the East Japan Great Earthquake},
 volume = {53},
 year = {2016}
}