1. Raketenflugtechnik;Sänger,1933
2. A comparative analysis of the performance of long-range hypervelocity vehicles;Eggers;NASA R-1382,1958
3. A rocket drive for long range bombers;Sänger,1944
4. First steps in boost-gliding;Gatland;The Aeroplane and Astronautics,1944
5. Dyan-Soar;Yoler,1961