Background: I am a writer who covers trends affecting the travel industry. I follow closely events that affect a nation's transportation infrastructure, and I am currently researching strikes at airports in Germany for an article in a weekly travel industry bulletin.
Request: I would like to compile a summary of worker strikes at German airports. I would like to know the affected airports, start dates and duration, reasons behind the strikes, negotiations between labor and management, resolutions, and the impact on German and international transportation.