Great Circle Mapper

• http://libraryonline.erau.edu/online-full-text/ntsb/aircraft-accident-reports/AAR79-17.pdf
• http://libraryonline.erau.edu/
• http://www.airweb.faa.gov/Regulatory_and_Guidance_Library/rgMakeModel.nsf/0/39d67c25133ab80a862575d1006f7449/$FILE/A22WE.pdf
• http://www.faa.gov/
• https://www.chicagotribune.com/
• https://www.chicagotribune.com/chi-110823-flight-191-memorial-pictures-photogallery.html
• https://www.chicagotribune.com/history/ct-flight-191-agg-story-20190521-story.html
• https://www.chicagotribune.com/opinion/commentary/ct-perspec-flashback-american-airlines-flight-191-crash-ohare-editorial-20190511-story.html
• http://www.kls2.com/~karl/
• http://www.facebook.com/gcmap
• http://www.twitter.com/gcmap
• https://www.linkedin.com/company/great-circle-mapper