TY - BOOK AU - Liu,Shiao-Kung ED - United States Air Force. ED - Research and Development Corporation, TI - Aerospace-plane flights and stratospheric ozone: review and preliminary assessment of the National Aerospace Plane (NASP) Operations T2 - A Rand note PY - 1992/// CY - California PB - Rand Corporation KW - Supersonic planes KW - Environmental aspects KW - Hypersonic planes KW - Environmental aspects. KW - Ozone layer depletion. N1 - Includes bibliographical references ER -