@article{Geppert:2011,
  author  = "U. Geppert and B. Biering and F. Lura and J. Block and M. Straubel and R. Reinhard",
  title   = "The 3-step DLR-ESA Gossamer road to solar sailing",
  journal = "Advances in Space Research",
  volume  = "Vol. 48",
  number  = "no 11",
  pages   = "1695--1701",
  year    = "2011",
}