Automated gathering of Web information: An in-depth examination of agents interacting with search engines.

Bernard J. Jansen Tracy Mullen Amanda Spink Jan O. Pedersen Automated gathering of Web information: An in-depth examination of agents interacting with search engines. 442-464 2006 6 ACM Trans. Internet Techn. 4 http://doi.acm.org/10.1145/1183463.1183468 db/journals/toit/toit6.html#JansenMSP06