Moore, Mark (13 de setembro de 2010), «NASA Puffin Electric Tailsitter VTOL Concept», American Institute of Aeronautics and Astronautics, 10th AIAA Aviation Technology, Integration, and Operations (ATIO) Conference, Aviation Technology, Integration, and Operations (ATIO) Conferences, doi:10.2514/6.2010-9345, consultado em 4 de novembro de 2021
Seegers, Bryan; Guthrie, Brian; Fontana, Richard (13 de setembro de 2010), «Puffin Redundant Electric Propulsion Powertrain System», American Institute of Aeronautics and Astronautics, 10th AIAA Aviation Technology, Integration, and Operations (ATIO) Conference, Aviation Technology, Integration, and Operations (ATIO) Conferences, doi:10.2514/6.2010-9383, consultado em 4 de novembro de 2021
Moore, Mark (13 de setembro de 2010), «NASA Puffin Electric Tailsitter VTOL Concept», American Institute of Aeronautics and Astronautics, 10th AIAA Aviation Technology, Integration, and Operations (ATIO) Conference, Aviation Technology, Integration, and Operations (ATIO) Conferences, doi:10.2514/6.2010-9345, consultado em 4 de novembro de 2021
Seegers, Bryan; Guthrie, Brian; Fontana, Richard (13 de setembro de 2010), «Puffin Redundant Electric Propulsion Powertrain System», American Institute of Aeronautics and Astronautics, 10th AIAA Aviation Technology, Integration, and Operations (ATIO) Conference, Aviation Technology, Integration, and Operations (ATIO) Conferences, doi:10.2514/6.2010-9383, consultado em 4 de novembro de 2021