11 - 15 Mayo, 1981

13 - 23 September, 1981

24 September, 1981

26 - 29 April, 1982

06 - 09 December, 1982

02 - 05 Mayo, 1983

02 - 06 October, 1983

12 October, 1983

01 - 03 Mayo, 1984

03 - 05 December, 1984