https://community.riverbed.com/s/question/0D5VM00000SYehN0AT/policy-suspension-is-american-airlines-charging-for-cancellations
https://www.devex.com/people/what-is-the-cancellation-policy-for-lufthansa-2174910
https://www.ingrammicroresellerapplication.com/forums/general-discussion/b1aa397b-1eb9-ef11-95f5-000d3a03f350
https://community.riverbed.com/s/question/0D5VM00000SXqPp0AL/does-american-have-a-cancellation-policyrefundguide
https://community.jungleworks.com/t/what-is-the-cancellation-policy-for-lufthansa-policy-explained/69114
https://community.jungleworks.com/t/what-is-the-cancellation-policy-for-lufthansa-handling-compensation/69085
https://www.devex.com/people/what-is-the-cancellation-policy-for-lufthansa-faq-2173165
https://community.jungleworks.com/t/does-lufthansa-allow-24-hour-cancellation-policy-get-compensation/69031
https://www.devex.com/people/can-you-cancel-a-lufthansa-booking-within-24-hours-2170995
https://www.devex.com/people/what-is-the-cancellation-policy-with-lufthansa-2170891