@article{weko_69220_1, author = "Kazumasa,Omote and Takeshi,Shimoyama and Satoru,Torii", title = "A Combinatorics Proliferation Model with Threshold for Malware Countermeasure", journal = "Journal of information processing", year = "2010", volume = "18", number = "", pages = "77--87", month = "mar" }