@inproceedings{inproceedings, title = {{Introduction to the CLEF 2011 Labs.}}, publisher = {{CEUR-WS.org}}, url = {{http://ceur-ws.org/Vol-1177 }}, year = {{2011}}, month = {{1}}, author = {{Petras V and Clough PD}}, isbn = {{978-88-904810-1-7}}, volume = {{1177}}, journal = {{CLEF (Notebook Papers/Labs/Workshop)}}, note = {{Accessed on 2025/09/19}}}