Maiersperger, Walter P., Lieutenant Colonel, USAF (Ret) (March–April 1968). "What is STOL?". Archived from the original on 2011-07-22. Retrieved 2009-12-25.{{cite web}}: CS1 maint: multiple names: authors list (link)
Maiersperger, Walter P., Lieutenant Colonel, USAF (Ret) (March–April 1968). "What is STOL?". Archived from the original on 2011-07-22. Retrieved 2009-12-25.{{cite web}}: CS1 maint: multiple names: authors list (link)