Mars Helicopter Technology DemonstratorArxivat 1 April 2019[Date mismatch] a Wayback Machine. J. (Bob) Balaram, Timothy Canham, Courtney Duncan, Matt Golombek, Håvard Fjær Grip, Wayne Johnson, Justin Maki, Amelia Quon, Ryan Stern, and David Zhu. American Institute of Aeronautics and Astronautics (AIAA), SciTech Forum Conference; 8–12 January 2018, Kissimmee, Florida doi:10.2514/6.2018-0023Aquest article incorpora text d'aquesta font, la qual és de domini públic.
Laboratory, Håvard Grip, Chief Pilot & Bob Balaram, Chief Engineer for the Mars Helicopter Project at NASA's Jet Propulsion. «We’re Going Big for Flight 9» (en anglès).
Mars Helicopter Technology DemonstratorArxivat 1 April 2019[Date mismatch] a Wayback Machine. J. (Bob) Balaram, Timothy Canham, Courtney Duncan, Matt Golombek, Håvard Fjær Grip, Wayne Johnson, Justin Maki, Amelia Quon, Ryan Stern, and David Zhu. American Institute of Aeronautics and Astronautics (AIAA), SciTech Forum Conference; 8–12 January 2018, Kissimmee, Florida doi:10.2514/6.2018-0023Aquest article incorpora text d'aquesta font, la qual és de domini públic.
Mars Helicopter Technology DemonstratorArxivat 1 April 2019[Date mismatch] a Wayback Machine. J. (Bob) Balaram, Timothy Canham, Courtney Duncan, Matt Golombek, Håvard Fjær Grip, Wayne Johnson, Justin Maki, Amelia Quon, Ryan Stern, and David Zhu. American Institute of Aeronautics and Astronautics (AIAA), SciTech Forum Conference; 8–12 January 2018, Kissimmee, Florida doi:10.2514/6.2018-0023Aquest article incorpora text d'aquesta font, la qual és de domini públic.