"Prepared for Langley Research Center under contract NAS1-14970."
"May 1981"--Cover
Physical description for original version: 27 p. : 28 cm
書誌注記
Includes bibliographical references
原資料等に関する注記
原資料の出版事項: Washington, D.C. ; [Springfield, Va. : National Aeronautics and Space Administration, Scientific and Technical Information Branch : For sale by the National Technical Information Center], 1981