@article{DachwaldSeboldtRichter2008,
  author    = {Bernd Dachwald and W. Seboldt and L. Richter},
  title     = {Multiple rendezvous and sample return missions to near-Earth objects using solar sailcraft / Dachwald, B. ; Seboldt, W. ; Richter, L.},
  journal   = {Acta Astronautica. 59 (2006), H. 8-11},
  pages     = {768 -- 776},
  year      = {2008},
}