@article{oai:tsukuba.repo.nii.ac.jp:00021546, author = {ROMANOV, Anton and 岡本, 栄司 and OKAMOTO, Eiji}, issue = {6}, journal = {IEICE transactions on communications}, month = {Jun}, pages = {1411--1421}, title = {Forecasting of Information Security Related Incidents: Amount of Spam Messages as a Case Study}, volume = {E93.B}, year = {2010}, yomi = {オカモト, エイジ} }