https://washingtonstate.forums.rivals.com/threads/lf-usa-what-is-the-24-hour-rule-for-lufthansa-quick-solutions-24-7-help.38939/

https://washingtonstate.forums.rivals.com/threads/lf-usa-what-is-the-24-hour-rule-for-lufthansa-quick-solutions-24-7-help.38939/

https://washingtonstate.forums.rivals.com/threads/lf-usa-what-is-the-24-hour-rule-for-lufthansa-quick-solutions-24-7-help.38939/