<XML><RECORDS><RECORD><REFERENCE_TYPE>3</REFERENCE_TYPE><REFNUM>9119</REFNUM><AUTHORS><AUTHOR>He,B.</AUTHOR><AUTHOR>Ounis,I.</AUTHOR></AUTHORS><YEAR>2009</YEAR><TITLE>Studying Query Expansion Effectiveness</TITLE><PLACE_PUBLISHED>In Proceedings of ECIR'09. Toulouse, France, 2009.</PLACE_PUBLISHED><PUBLISHER>LNCS, Springer</PUBLISHER><LABEL>He:2009:9119</LABEL></RECORD></RECORDS></XML>