Strike, wage raise - 1982Strike, wage demands excluding wage raise - 1989Strike, wage raise - 1998Strike, wage demands excluding wage raise - 1987Strike, wage demands excluding wage raise - 1988Strike, wage demands excluding wage raise - 1988collective illness, directed against certain individuals - 1979Strike, wage raise - 2002petition, state regulations regarding labour conditions - 2012collective illness, against bad company policy - 2000Strike, wage raise - 2001