<XML><RECORDS><RECORD><REFERENCE_TYPE>0</REFERENCE_TYPE><REFNUM>5211</REFNUM><AUTHORS><AUTHOR>Brewster,S.A.</AUTHOR><AUTHOR>Capriotti,A.</AUTHOR><AUTHOR>Hall,C.</AUTHOR></AUTHORS><YEAR>1998</YEAR><TITLE>Using compound earcons to represent hierarchies</TITLE><PLACE_PUBLISHED>HCI Letters </PLACE_PUBLISHED><PUBLISHER>Academic Press</PUBLISHER><PAGES>6-8</PAGES><LABEL>Brewster:1998:5211</LABEL><ABSTRACT> </ABSTRACT></RECORD></RECORDS></XML>