During the General Meeting of the Organisation in Luxembourg, news of the activities of the working parties has been given. Some of the reports, prepared before that occasion, are published on Bulletin n° 31: these concern research groupes number 8, 9 and 5.The activity of some other groupes has been reported by mean of papers presented at the Round Table "New ways for ropes" held in the same occasion. These papers are published with proceedings of the Round Table meeting and concern the research groups number 7, 8 and 10: their summary is here reported. The other reports presented to the Assembly are published here.
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