1.

Technical Paper
Technical Paper
1. Hypersonic Airplane Space Tether Orbital Launch - HASTOL: A Two-Stage Commercial Launch System
Grant, John E. ; Willenberg, Harvey J. ; Tillotson, Brian J. ; Stemler, Joseph N. ; Bangham, Michal E. ; Forward, Robert L.
Pub. info.: AIAA paper.  pp.1-17,  2000.  American Institute of Aeronautics and Astronautics
Title of ser.: AIAA Paper : AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit
Ser. no.: 2000
2.

Technical Paper
Technical Paper
2. Strategies for development of space business parks in the space station era
Smitherman, David V., Jr. ; Willenberg, Harvey J.
Pub. info.: A bound collection of papers : AIAA Defense and Space Programs Conference and Exhibit Huntsville, AL September 23-25, 1997.  pp.178-188,  1997.  Reston, VA.  American Institute of Aeronautics and Astronautics
Title of ser.: AIAA Paper : AIAA Defense and Space Programs Conference and Exhibit
Ser. no.: CP9714
3.

Technical Paper
Technical Paper
3. APPLICABILITY OF 100kWe-CLASS OF SPACE REACTOR POWER SYSTEMS TO NASA MANNED SPACE STATION MISSIONS Final Report
Silverman, Sidney W. ; Willenberg, Harvey J. ; Robertson, Charles
Pub. info.: NASA Technical Reports.  (NASA-CR-174696),  pp.1-184,  1985.  National Aeronautics and Space Administration