Bryan Palaszewski. "Atmospheric Mining in the Outer Solar System"(PDF). Diarsipkan dari versi asli(PDF) tanggal 2009-03-27. Diakses tanggal 2014-01-01. NASA Technical Memorandum 2006-214122. AIAA–2005–4319. Prepared for the 41st Joint Propulsion Conference and Exhibit cosponsored by AIAA, ASME, SAE, and ASEE, Tucson, Arizona, July 10–13, 2005.
Slyuta, E. N. (March 12–16, 2007). The Estimation of Helium-3 Probable Reserves in Lunar Regolith(PDF). 38th Lunar and Planetary Science Conference. hlm. 2175. Diarsipkan(PDF) dari versi asli tanggal 2008-07-05. Diakses tanggal 2014-01-01.Parameter |coauthors= yang tidak diketahui mengabaikan (|author= yang disarankan) (bantuan)
Slyuta, E. N. (March 12–16, 2007). The Estimation of Helium-3 Probable Reserves in Lunar Regolith(PDF). 38th Lunar and Planetary Science Conference. hlm. 2175. Diarsipkan(PDF) dari versi asli tanggal 2008-07-05. Diakses tanggal 2014-01-01.Parameter |coauthors= yang tidak diketahui mengabaikan (|author= yang disarankan) (bantuan)
Bryan Palaszewski. "Atmospheric Mining in the Outer Solar System"(PDF). Diarsipkan dari versi asli(PDF) tanggal 2009-03-27. Diakses tanggal 2014-01-01. NASA Technical Memorandum 2006-214122. AIAA–2005–4319. Prepared for the 41st Joint Propulsion Conference and Exhibit cosponsored by AIAA, ASME, SAE, and ASEE, Tucson, Arizona, July 10–13, 2005.