<XML><RECORDS><RECORD><REFERENCE_TYPE>3</REFERENCE_TYPE><REFNUM>5340</REFNUM><AUTHORS><AUTHOR>Gray,P.</AUTHOR><AUTHOR>Welland,R.C.</AUTHOR></AUTHORS><YEAR>1999</YEAR><TITLE>Increasing the Flexibility of Modelling Tools via Constraint-Based Specification</TITLE><PLACE_PUBLISHED>CASCON '99 (Toronto) </PLACE_PUBLISHED><PUBLISHER>N/A</PUBLISHER><PAGES>-</PAGES><LABEL>Gray:1999:5340</LABEL><ABSTRACT> </ABSTRACT></RECORD></RECORDS></XML>