Haggerty, James J. (1987-08-01). "Toward future flight". Spinoff(PDF) (1987 ed.). NASA (published August 1987). pp. 30–33. hdl:2060/19880002195. OCLC17914180. Archived from the original on April 12, 2009.
Kehe, R. N.; Morrison, Jr., H. F. (September 15–18, 1986). Cargo airlift: what's old? What's new?. International Forum for Air Cargo and International Air Cargo Exposition. SAE Technical Papers (13th ed.). Basel, Switzerland (published October 1986). doi:10.4271/861152. ISSN0148-7191. JSTOR44470563. OCLC5818017739.
Henne, P. A. (July 31 – August 2, 1989). MD-90 transport aircraft design. AIAA/AHS/ASEE Aircraft Design, Systems and Operations Conference. Seattle, Washington, USA. doi:10.2514/6.1989-2023. OCLC1109563682.
Haggerty, James J. (1987-08-01). "Toward future flight". Spinoff(PDF) (1987 ed.). NASA (published August 1987). pp. 30–33. hdl:2060/19880002195. OCLC17914180. Archived from the original on April 12, 2009.
Kehe, R. N.; Morrison, Jr., H. F. (September 15–18, 1986). Cargo airlift: what's old? What's new?. International Forum for Air Cargo and International Air Cargo Exposition. SAE Technical Papers (13th ed.). Basel, Switzerland (published October 1986). doi:10.4271/861152. ISSN0148-7191. JSTOR44470563. OCLC5818017739.
Haggerty, James J. (1987-08-01). "Toward future flight". Spinoff(PDF) (1987 ed.). NASA (published August 1987). pp. 30–33. hdl:2060/19880002195. OCLC17914180. Archived from the original on April 12, 2009.
Haggerty, James J. (1987-08-01). "Toward future flight". Spinoff(PDF) (1987 ed.). NASA (published August 1987). pp. 30–33. hdl:2060/19880002195. OCLC17914180. Archived from the original on April 12, 2009.
Kehe, R. N.; Morrison, Jr., H. F. (September 15–18, 1986). Cargo airlift: what's old? What's new?. International Forum for Air Cargo and International Air Cargo Exposition. SAE Technical Papers (13th ed.). Basel, Switzerland (published October 1986). doi:10.4271/861152. ISSN0148-7191. JSTOR44470563. OCLC5818017739.
Henne, P. A. (July 31 – August 2, 1989). MD-90 transport aircraft design. AIAA/AHS/ASEE Aircraft Design, Systems and Operations Conference. Seattle, Washington, USA. doi:10.2514/6.1989-2023. OCLC1109563682.