<XML><RECORDS><RECORD><REFERENCE_TYPE>0</REFERENCE_TYPE><REFNUM>5335</REFNUM><AUTHORS><AUTHOR>Gray,G.J.</AUTHOR><AUTHOR>Granhagen,W.</AUTHOR></AUTHORS><YEAR>1998</YEAR><TITLE>An Investigation of Open Loop and Inverse Simulation as Nonlinear Model Validation Tools for Helicopter Flight Mechanics</TITLE><PLACE_PUBLISHED>Mathematical Modelling of Systems</PLACE_PUBLISHED><PUBLISHER>N/A</PUBLISHER><PAGES>32-57</PAGES><LABEL>Gray:1998:5335</LABEL></RECORD></RECORDS></XML>