1. Analyse kostenoptimaler Wiedereintauchbahnen und Bergungsverfahren;Birkholz,1977
2. Selection, Development, Characterization and flight test of a thermal protection system for an Earth entry satellite vehicle;Florence,1978
3. A Study of Refurbishment Cost and Techniques for Space Shuttle Thermal Protection Systems;Haas,1972
4. Ergebnisse einer Betriebssimulation für wiederverwendbare Raumtransporter;Johenning;Raumfahrtforschung,1972
5. Performance and cost analysis for a SSTO + OTV heavy cargo transportation system to geosynchronous orbit;Koelle,1978