https://washingtonstate.forums.rivals.com/threads/lufthansa-24-hour-rule–8558-38-49-71-what-is-the-24-hour-rule-for-lufthansa.36207/

https://washingtonstate.forums.rivals.com/threads/lufthansa-24-hour-rule-%F0%9D%9F%AD-8558-38-49-71-what-is-the-24-hour-rule-for-lufthansa.36207/