@book{GerhardtKramerJansen1977,
  author    = {Gerhardt, Hans Joachim and Kramer, Carl and Jansen, Hubert},
  title     = {Traglufthallen unter Windbelastung},
  publisher = {Westdt. Verl.},
  address   = {Opladen},
  isbn      = {3-531-02650-X},
  pages     = {39 S. : Ill., graph. Darst.},
  year      = {1977},
  language  = {de}
}
@book{Gerhardt1977,
  author    = {Gerhardt, Hans Joachim},
  title     = {Untersuchungen zur aerodynamischen Detailoptimierung von Personenkraftwagen mit Hilfe von Modellversuchen im Windkanal / Carl Kramer ; Hans-Joachim Gerhardt; Siegfried Scherer},
  publisher = {Westdt. Verl.},
  address   = {Opladen},
  isbn      = {3-531-02633-X},
  pages     = {39 S. : Ill., graph. Darst.},
  year      = {1977},
  language  = {de}
}
@book{GerhardtKramer1982,
  author    = {Gerhardt, Hans Joachim and Kramer, Carl},
  title     = {Untersuchungen zur Lagesicherung von Flachd{\"a}chern mittels Kies- und Plattenabdeckungen},
  publisher = {IRB-Verl.},
  address   = {Stuttgart},
  pages     = {26, [18] S. : Ill., graph. Darst.},
  year      = {1982},
  language  = {de}
}
@book{GerhardtKramer1983,
  author    = {Gerhardt, Hans Joachim and Kramer, Carl},
  title     = {Windlasten auf nach innen geneigten Dachfl{\"a}chen},
  publisher = {IRB-Verl.},
  address   = {Stuttgart},
  pages     = {17, [11] Bl. : graph. Darst.},
  year      = {1983},
  language  = {de}
}
@book{Gerhardt1983,
  author    = {Gerhardt, Hans Joachim},
  title     = {Abschlußbericht zum Forschungsvorhaben 'Untersuchungen zur Windbelastung von kleinformatigen harten Dachwerkstoffen' / Forscher: C. Kramer ; H. J. Gerhardt. Bearb.: H.-W. Kuster},
  publisher = {IRB-Verl.},
  address   = {Stuttgart},
  pages     = {55, [70] S. : Ill., graph. Darst.},
  year      = {1983},
  language  = {de}
}
@article{GerhardtKramer1984,
  author    = {Gerhardt, Hans Joachim and Kramer, C.},
  title     = {Belastung von RA bei Windangriff},
  series = {Zentralblatt fuer Industriebau. 30 (1984), H. 3},
  journal   = {Zentralblatt fuer Industriebau. 30 (1984), H. 3},
  isbn      = {0044-4227},
  pages     = {214 -- 217},
  year      = {1984},
  language  = {de}
}
@article{GerhardtKramerJanssen1985,
  author    = {Gerhardt, Hans Joachim and Kramer, C. and Janssen, L.-J.},
  title     = {Flow studies of an open jet wind tunnel and comparison with closed and slotted walls},
  pages     = {7 -- 28},
  year      = {1985},
  language  = {en}
}
@article{GerhardtCooperWhitbreadetal.1985,
  author    = {Gerhardt, Hans Joachim and Cooper, K.-R. and Whitbread, R. and Gary, K.-P. (u.a.)},
  title     = {A comparison of aerodynamic drag measurements on model trucks in closed-jet and open-jet wind tunnels},
  pages     = {261 -- 274},
  year      = {1985},
  language  = {en}
}
@article{GerhardtKramer1985,
  author    = {Gerhardt, Hans Joachim and Kramer, C.},
  title     = {Aerodynamsiche RA-Optimierung},
  series = {Zentralblatt fuer Industriebau. 31 (1985), H. 5},
  journal   = {Zentralblatt fuer Industriebau. 31 (1985), H. 5},
  isbn      = {0044-4227},
  pages     = {358 -- 362},
  year      = {1985},
  language  = {en}
}
@article{Gerhardt1986,
  author    = {Gerhardt, Hans Joachim},
  title     = {Belastung von Rauchabzugsgeraeten bei Windangriff},
  series = {Sanitaer- und Heizungstechnik. 51 (1986), H. 3},
  journal   = {Sanitaer- und Heizungstechnik. 51 (1986), H. 3},
  isbn      = {0036-4401},
  pages     = {150 -- 152},
  year      = {1986},
  language  = {de}
}