Strike, diminished working hours - 1986Strike, state regulations regarding labour conditions - 1980Strike, against a bankruptcy or closing down - 1987Strike, other demands - 1975Strike, wage raise - 1980Strike, wage raise - 2000Strike, diminished working hours - 1992Strike, against a bankruptcy or closing down - 1999Strike, against the speed up of work - 1999collective day off, against a bankruptcy or closing down - 1985