"Prepared for the National Aeronautics and Space Administration, Langley Research Center."
"This final report ... consists of two parts. Part I consists of the summary of the earlier work whose reports have been submitted at various times during the period (1/1/87 to 12/31/1989). Part II describes in detail the research work done during the period 1/1/1990 to 7/31/1990"-- p. [1].
Title of Part II : Orbital plane change maneuver with aerocruise.
