Cassutt, Michael (August 2009). "Secret Space Shuttles". Air & Space magazine. Washington, D.C.: Smithsonian Institution. Archived from the original on January 6, 2021.
"Lacrosse 1". Space Science Data Coordinated Archive. NASA. Archived from the original on August 15, 2020. Retrieved August 12, 2010. This article incorporates text from this source, which is in the public domain.
sma.nasa.gov
Legler, Robert D.; Bennett, Floyd V. (September 1, 2011). "Space Shuttle Missions Summary"(PDF). Scientific and Technical Information (STI) Program Office. NASA. p. 2-29. NASA/TM–2011–216142. Archived(PDF) from the original on October 21, 2020. This article incorporates text from this source, which is in the public domain.
history.nasa.gov
Fries, Colin (March 13, 2015). "Chronology of Wakeup Calls"(PDF). History Division. NASA. Archived(PDF) from the original on January 5, 2021. Retrieved January 5, 2021. This article incorporates text from this source, which is in the public domain.
Legler, Robert D.; Bennett, Floyd V. (September 1, 2011). "Space Shuttle Missions Summary"(PDF). Scientific and Technical Information (STI) Program Office. NASA. p. 2-29. NASA/TM–2011–216142. Archived(PDF) from the original on October 21, 2020. This article incorporates text from this source, which is in the public domain.
"Lacrosse 1". Space Science Data Coordinated Archive. NASA. Archived from the original on August 15, 2020. Retrieved August 12, 2010. This article incorporates text from this source, which is in the public domain.
Cassutt, Michael (August 2009). "Secret Space Shuttles". Air & Space magazine. Washington, D.C.: Smithsonian Institution. Archived from the original on January 6, 2021.
Fries, Colin (March 13, 2015). "Chronology of Wakeup Calls"(PDF). History Division. NASA. Archived(PDF) from the original on January 5, 2021. Retrieved January 5, 2021. This article incorporates text from this source, which is in the public domain.