@inproceedings{DachwaldKahleWie2022,
  author    = {Bernd Dachwald and Ralph Kahle and Bong Wie},
  title     = {Head-on impact deflection of NEAs: a case study for 99942 Apophis},
  booktitle = {Planetary Defense Conference 2007},
  pages     = {1 -- 12},
  year      = {2022},
}