Multi-phase trajectory optimization methods with applications to hypersonic vehicles. Applied Mathematics in Aerospace Science and Engineering, 133--164, Springer, 1994. [PUMA: 1994 ifr]
Linear Optimal Control for Reentry Flight. In: Control Applications of Optimization. In R. Bulirsch, und D. Kraft (Hrsg.), Control Applications of Optimization, (115)Birkhäuser, New York, USA, 1994. [PUMA: 1994 ifr]
Vom Weltraum aufs Fußballfeld - geht das?. Jahrbuch Universität Stuttgart, 1994. [PUMA: 1994 ifr]
Optimal Multi-Criteria Aeroassisted Orbital Transfer Trajectories. IFACS Symposium on Automatic Control in Aerospace, (13)12.09.1994. [PUMA: 1994 ifr]