"Nariyoshi;Yamai|Kiyohiko;Okayama|Takuya;Miyashita|Shin;Maruyama|Motonori;Nakamura|","A protection method against massive error mails caused by sender spoofed spam mails","Proceedings of the 2005 Symposium on Applications and the Internet","","2005","","","384","390","","","","http://escholarship.lib.okayama-u.ac.jp/30058","10.1109/SAINT.2005.7"