Satoshi Nakamura Shinji Konishi Adam Jatowt Hiroaki Ohshima Hiroyuki Kondo Taro Tezuka Satoshi Oyama Katsumi Tanaka Trustworthiness Analysis of Web Search Results. 38-49 2007 conf/ercimdl/2007 ECDL http://dx.doi.org/10.1007/978-3-540-74851-9_4 db/conf/ercimdl/ecdl2007.html#NakamuraKJOKTOT07