Ilan Kroo and Eric Beckman, with Brian Robbins, Steve Morris, and Brian Porter; "Development of the SWIFT: A Tailless Foot-Launched Sailplane", Hang Gliding, January 1991. IHPA online copy (retrieved 22 July 2020), Stanford online copyArchived 2011-09-05 at the Wayback Machine. (retrieved 22 July 2020)
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Ilan Kroo and Eric Beckman, with Brian Robbins, Steve Morris, and Brian Porter; "Development of the SWIFT: A Tailless Foot-Launched Sailplane", Hang Gliding, January 1991. IHPA online copy (retrieved 22 July 2020), Stanford online copyArchived 2011-09-05 at the Wayback Machine. (retrieved 22 July 2020)
Ilan Kroo and Eric Beckman, with Brian Robbins, Steve Morris, and Brian Porter; "Development of the SWIFT: A Tailless Foot-Launched Sailplane", Hang Gliding, January 1991. IHPA online copy (retrieved 22 July 2020), Stanford online copyArchived 2011-09-05 at the Wayback Machine. (retrieved 22 July 2020)